taxonID	type	description	language	source
039435190B47C87BFE74FC67FE815DEC.taxon	materials_examined	Type material examined. Orthocladius rusticus: LECTOTYPE (slide): labelled ‘ Orthocladius / rusticus n. sp. // Lectotype // Postel 11 juin 1923 G Severin // Type ♁ / M. Goetghebuer // R. I. Sc. N. B. 18.073 / Coll. et det. M. Goetghebuer’. PARALECTOTYPE (slide): labelled ‘ rusticus G // Paralectotype // Postel 11 juin 1923 G Severin // R. I. SC. N. B. 18.073 / Coll. et det. M. Goetghebuer’.	en	Magoga, Giulia, Montagna, Matteo, Marziali, Laura, Rossaro, Bruno, Disaa (2017): Revision of type and non-type material assigned to the genus Orthocladius by Goetghebuer (1940 - 1950), deposited in the Royal Belgian Institute of Natural Sciences (Diptera: Chironomidae). Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2): 723-749, DOI: 10.1515/aemnp-2017-0097, URL: http://dx.doi.org/10.1515/aemnp-2017-0097
039435190B47C87BFE74FC67FE815DEC.taxon	discussion	Comments. SOPONIS (1986) mounted the specimens on slides, redescribed the species, designated the lectotype and placed it in the genus Chaetocladius Kieffer, 1911.	en	Magoga, Giulia, Montagna, Matteo, Marziali, Laura, Rossaro, Bruno, Disaa (2017): Revision of type and non-type material assigned to the genus Orthocladius by Goetghebuer (1940 - 1950), deposited in the Royal Belgian Institute of Natural Sciences (Diptera: Chironomidae). Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2): 723-749, DOI: 10.1515/aemnp-2017-0097, URL: http://dx.doi.org/10.1515/aemnp-2017-0097
039435190B47C87BFEBFFAB3FE875F3F.taxon	materials_examined	Type material examined. Orthocladius franzi: HOLOTYPE: ♁, pinned, now slide-mounted, labelled ‘ Orthocladius franzi n sp // type locality Bach vor Mischlauer Wasserfall 1948 leg. D Franz, Admont // Type ♁ / M. Goetghebuer’.	en	Magoga, Giulia, Montagna, Matteo, Marziali, Laura, Rossaro, Bruno, Disaa (2017): Revision of type and non-type material assigned to the genus Orthocladius by Goetghebuer (1940 - 1950), deposited in the Royal Belgian Institute of Natural Sciences (Diptera: Chironomidae). Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2): 723-749, DOI: 10.1515/aemnp-2017-0097, URL: http://dx.doi.org/10.1515/aemnp-2017-0097
039435190B47C87BFEBFFAB3FE875F3F.taxon	discussion	Comments. ASHE & O’CONNOR (2012) listed Orthocladius franzi under nomina dubia in Orthocladiinae. The specimen examined here is unequivocally assigned to C. (P.) rufiventris, O. franzi becomes its junior synonym. Paratrichocladius Santos Abreu, 1918 is now included as a subgenus in Cricotopus van der Wulp, 1874 (CRANSTON & KROSCH 2015).	en	Magoga, Giulia, Montagna, Matteo, Marziali, Laura, Rossaro, Bruno, Disaa (2017): Revision of type and non-type material assigned to the genus Orthocladius by Goetghebuer (1940 - 1950), deposited in the Royal Belgian Institute of Natural Sciences (Diptera: Chironomidae). Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2): 723-749, DOI: 10.1515/aemnp-2017-0097, URL: http://dx.doi.org/10.1515/aemnp-2017-0097
039435190B46C87AFEFDFF62FEC55AEE.taxon	description	? Paratrichocladius nigritus (Goetghebuer): LANGTON & VISSER (2003), pupal exuviae.? Paratrichocladius nigritus (Goetghebuer): LANGTON & PINDER (2007), adult male.	en	Magoga, Giulia, Montagna, Matteo, Marziali, Laura, Rossaro, Bruno, Disaa (2017): Revision of type and non-type material assigned to the genus Orthocladius by Goetghebuer (1940 - 1950), deposited in the Royal Belgian Institute of Natural Sciences (Diptera: Chironomidae). Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2): 723-749, DOI: 10.1515/aemnp-2017-0097, URL: http://dx.doi.org/10.1515/aemnp-2017-0097
039435190B46C87AFEFDFF62FEC55AEE.taxon	materials_examined	Type material examined. Orthocladius nigritus: HOLOTYPE: ♁ stored in isinglass, now mounted on slide, labelled ‘ Orthocladius nigritus n. sp. // type ♁ / M. Goetghebuer // locality Basse Autriche 1938, t 23 ° // R. I. SC. N. B. 18.073 / Coll. et det. M. Goetghebuer’.	en	Magoga, Giulia, Montagna, Matteo, Marziali, Laura, Rossaro, Bruno, Disaa (2017): Revision of type and non-type material assigned to the genus Orthocladius by Goetghebuer (1940 - 1950), deposited in the Royal Belgian Institute of Natural Sciences (Diptera: Chironomidae). Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2): 723-749, DOI: 10.1515/aemnp-2017-0097, URL: http://dx.doi.org/10.1515/aemnp-2017-0097
039435190B46C87AFEFDFF62FEC55AEE.taxon	discussion	Comments. The specimen fits well with C. (P.) skirwithensis (Edwards, 1929); therefore, we propose to synonymize O. nigritus Goetghebuer, 1938 (not Malloch, 1915) with C. (P.) skirwithensis. Consequently, its replacement name P. spiesi Ashe & O’Connor, 2012 also becomes a junior synonym of C. (P.) skirwithensis. LANGTON & VISSER (2003) and LANGTON & PINDER (2007) separated the respective pupae and adult male of Paratrichocladius nigritus (Goetghebuer) and of P. skirwithensis (Edwards). Unfortunately, the delimitation of species within the subgenus Paratrichocladius is still controversial, many species are probably present, but morphological evidence should be supported by DNA sequences, because of intraspecific variability (CRANSTON & KROSCH 2015, MONTAGNA et al. 2016). The small differences described in pupal exuviae (LANGTON & VISSER 2003) do not justify the separation of two species, and this is supported by the examination of the adult male of O. nigritus, which cannot be separated from C. (P.) skirwithensis. It is thus not recommended to increase species names and the present decision of synonymizing O. nigritus sensu Goetghebuer with C. (P.) skirwithensis results in the synonymy of P. spiesi with C. (P.) skirwithensis.	en	Magoga, Giulia, Montagna, Matteo, Marziali, Laura, Rossaro, Bruno, Disaa (2017): Revision of type and non-type material assigned to the genus Orthocladius by Goetghebuer (1940 - 1950), deposited in the Royal Belgian Institute of Natural Sciences (Diptera: Chironomidae). Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2): 723-749, DOI: 10.1515/aemnp-2017-0097, URL: http://dx.doi.org/10.1515/aemnp-2017-0097
039435190B46C87AFF40FBB2FCB05F53.taxon	description	(Figs 1 – 6)	en	Magoga, Giulia, Montagna, Matteo, Marziali, Laura, Rossaro, Bruno, Disaa (2017): Revision of type and non-type material assigned to the genus Orthocladius by Goetghebuer (1940 - 1950), deposited in the Royal Belgian Institute of Natural Sciences (Diptera: Chironomidae). Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2): 723-749, DOI: 10.1515/aemnp-2017-0097, URL: http://dx.doi.org/10.1515/aemnp-2017-0097
039435190B46C87AFF40FBB2FCB05F53.taxon	materials_examined	Type material examined. Orthocladius collarti: LECTOTYPE (present designation): pinned ♁, now mounted on slide, labelled: ‘ Orth. collarti n. sp. ♁ D. M. Goetghebuer det. // Lectotype // type locality: Hockai Hautes Fagnes 21. IV. 1939 // R. I. SC. N. B. 18.073 en grand nombre (éclosion) près du sol, dans un endroit très marecageux’. PARALECTOTYPES: two pinned ♁♁ without hypopygium, now mounted on the same slide, labelled: ‘ Orthocladius collarti // Paralectotypes // same locality. R. Mus. Hist. Nat. Belg. I. G. 12.190 Coll. et det. M. Goetghebuer’.	en	Magoga, Giulia, Montagna, Matteo, Marziali, Laura, Rossaro, Bruno, Disaa (2017): Revision of type and non-type material assigned to the genus Orthocladius by Goetghebuer (1940 - 1950), deposited in the Royal Belgian Institute of Natural Sciences (Diptera: Chironomidae). Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2): 723-749, DOI: 10.1515/aemnp-2017-0097, URL: http://dx.doi.org/10.1515/aemnp-2017-0097
039435190B46C87AFF40FBB2FCB05F53.taxon	discussion	Comments. Orthocladius collarti was listed among nomina dubia in Chaetocladius by ASHE & O’CONNOR (2012). The species is now assigned to Georthocladius Strenzke, 1941 because of the presence of a squama with setae, sinuate Cu 1, presence of acrostichals, well developed pulvilli, tarsal pseudospurs present on ta 1 and ta 2 of p 3, a strong triangular anal point with numerous setae, a stout digitiform inferior volsella, and of a gonostylus that is distally enlarged, with a pronounced outer corner. A strong seta at the apex of the antenna seems to be present, but broken in the examined sample. The male hypopygium is identical with the one of Parachaetocladius retezati Albu, 1972; the presence of acrostichals reported in ALBU (1972) also supports inclusion in Georthocladius. We therefore consider P. retezati as a junior synonym of G. collarti.	en	Magoga, Giulia, Montagna, Matteo, Marziali, Laura, Rossaro, Bruno, Disaa (2017): Revision of type and non-type material assigned to the genus Orthocladius by Goetghebuer (1940 - 1950), deposited in the Royal Belgian Institute of Natural Sciences (Diptera: Chironomidae). Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2): 723-749, DOI: 10.1515/aemnp-2017-0097, URL: http://dx.doi.org/10.1515/aemnp-2017-0097
039435190B41C87CFF33FA82FC2C581E.taxon	description	(Figs 7 – 12)	en	Magoga, Giulia, Montagna, Matteo, Marziali, Laura, Rossaro, Bruno, Disaa (2017): Revision of type and non-type material assigned to the genus Orthocladius by Goetghebuer (1940 - 1950), deposited in the Royal Belgian Institute of Natural Sciences (Diptera: Chironomidae). Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2): 723-749, DOI: 10.1515/aemnp-2017-0097, URL: http://dx.doi.org/10.1515/aemnp-2017-0097
039435190B41C87CFF33FA82FC2C581E.taxon	materials_examined	Type material examined. Orthocladius scaturiginis: HOLOTYPE: ♁ stored in isinglass, now mounted on slide, labelled: ‘ Orthocladius scaturiginis n. sp. // type ♁ Goetghebuer // type locality environ d’Abisko en Laponie Suédoise, Thienemann, 1939 // R. I. SC. N. B. 18.073 / Coll. et det. M. Goetghebuer’.	en	Magoga, Giulia, Montagna, Matteo, Marziali, Laura, Rossaro, Bruno, Disaa (2017): Revision of type and non-type material assigned to the genus Orthocladius by Goetghebuer (1940 - 1950), deposited in the Royal Belgian Institute of Natural Sciences (Diptera: Chironomidae). Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2): 723-749, DOI: 10.1515/aemnp-2017-0097, URL: http://dx.doi.org/10.1515/aemnp-2017-0097
039435190B41C87CFF33FA82FC2C581E.taxon	discussion	Comments. Orthocladius scaturiginis was listed among nomina dubia in Orthocladiinae by ASHE & O’CONNOR (2012). The holotype male is not well preserved but can be identified as a Georthocladius because of the presence of acrostichals and pulvilli (SAETHER & SUBLETTE 1983); only one broken antenna is present. The species is similar to Georthocladius platystylus Saether & Sublette, 1983.	en	Magoga, Giulia, Montagna, Matteo, Marziali, Laura, Rossaro, Bruno, Disaa (2017): Revision of type and non-type material assigned to the genus Orthocladius by Goetghebuer (1940 - 1950), deposited in the Royal Belgian Institute of Natural Sciences (Diptera: Chironomidae). Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2): 723-749, DOI: 10.1515/aemnp-2017-0097, URL: http://dx.doi.org/10.1515/aemnp-2017-0097
039435190B40C87FFE92FE82FCA3583E.taxon	materials_examined	Type material examined. Orthocladius obesus: HOLOTYPE: pinned ♂, now mounted on slide, labelled: ‘ Orthocladius obesus n. sp. // type ♂ / M. Goetghebuer // type locality Abisko Lapp Sved Thienemann 1939 // R. I. SC. N. B. 18.073 / Coll. et det. M. Goetghebuer’.	en	Magoga, Giulia, Montagna, Matteo, Marziali, Laura, Rossaro, Bruno, Disaa (2017): Revision of type and non-type material assigned to the genus Orthocladius by Goetghebuer (1940 - 1950), deposited in the Royal Belgian Institute of Natural Sciences (Diptera: Chironomidae). Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2): 723-749, DOI: 10.1515/aemnp-2017-0097, URL: http://dx.doi.org/10.1515/aemnp-2017-0097
039435190B40C87FFE92FE82FCA3583E.taxon	discussion	Comments. The synonymy of O. obesus with H. conformis was already proposed by SAETHER (1976), even if the type material was probably not examined; the present examination of the holotype confirms the synonym.	en	Magoga, Giulia, Montagna, Matteo, Marziali, Laura, Rossaro, Bruno, Disaa (2017): Revision of type and non-type material assigned to the genus Orthocladius by Goetghebuer (1940 - 1950), deposited in the Royal Belgian Institute of Natural Sciences (Diptera: Chironomidae). Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2): 723-749, DOI: 10.1515/aemnp-2017-0097, URL: http://dx.doi.org/10.1515/aemnp-2017-0097
039435190B43C87FFE54FEC0FC7E5AAA.taxon	materials_examined	Type material examined. Orthocladius antennalis: LECTOTYPE and PARALECTOTYPE (here designated): two ♁♁ in isinglass, mounted on different slides; one slide labelled ‘ Orthocladius antennalis Melle 29. III. 1944 // Lectotype // R. I. SC. N. B. 18.073 / Coll. et det. M. Goetghebuer’, one slide labelled ‘ Orthocladius antennalis Melle 29. III. 1944 // Paralectotype // R. I. SC. N. B. 18.073 / Coll. et det. M. Goetghebuer’. Additional material examined. 1 pinned ♁ (non-type material but from the same type locality) labelled ‘ Reg. Mus. Hist. Nat. Belg. I. G. 10.148 // Dr. M. Goetghebuer det., 1933: Orthocladius distylus Kief. // Melle 2. IV. 23 M. Goetghebuer // distylus Kief. ’	en	Magoga, Giulia, Montagna, Matteo, Marziali, Laura, Rossaro, Bruno, Disaa (2017): Revision of type and non-type material assigned to the genus Orthocladius by Goetghebuer (1940 - 1950), deposited in the Royal Belgian Institute of Natural Sciences (Diptera: Chironomidae). Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2): 723-749, DOI: 10.1515/aemnp-2017-0097, URL: http://dx.doi.org/10.1515/aemnp-2017-0097
039435190B43C87FFE54FEC0FC7E5AAA.taxon	discussion	Comments. ASHE & O’CONNOR (2012) listed O. antennalis Goetghebuer, 1944 among nomina dubia in Orthocladiinae. Metriocnemus antennalis Kieffer, 1921 is from another type locality and belongs to another genus. The examination of genitalia supports that O. distylus is conspecific with O. antennalis. The wing membrane with faint punctation, squama with setae, presence of acrostichals, absence of pulvilli and the shape of hypopygium suggest the inclusion of all the three specimens in Hydrobaenus Fries, 1830. Therefore, O. antennalis is here stated as a junior synonym of H. distylus.	en	Magoga, Giulia, Montagna, Matteo, Marziali, Laura, Rossaro, Bruno, Disaa (2017): Revision of type and non-type material assigned to the genus Orthocladius by Goetghebuer (1940 - 1950), deposited in the Royal Belgian Institute of Natural Sciences (Diptera: Chironomidae). Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2): 723-749, DOI: 10.1515/aemnp-2017-0097, URL: http://dx.doi.org/10.1515/aemnp-2017-0097
039435190B43C87FFEB6FC4CFF315F3E.taxon	description	(Figs 13 – 19)	en	Magoga, Giulia, Montagna, Matteo, Marziali, Laura, Rossaro, Bruno, Disaa (2017): Revision of type and non-type material assigned to the genus Orthocladius by Goetghebuer (1940 - 1950), deposited in the Royal Belgian Institute of Natural Sciences (Diptera: Chironomidae). Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2): 723-749, DOI: 10.1515/aemnp-2017-0097, URL: http://dx.doi.org/10.1515/aemnp-2017-0097
039435190B43C87FFEB6FC4CFF315F3E.taxon	materials_examined	Type material examined. Orthocladius succineus: LECTOTYPE and PARALECTOTYPE (here designated): two ♁♁, in isinglass, now mounted on the same slide, labelled: ‘ Orthocladius succineus Goetgh. // Lectotype // Paralectotype // Allemagne 1941 dr. Thienemann // R. I. SC. N. B. 18.073 / Coll. et det. M. Goetghebuer’. The labels “ Lectotype ” and “ Paralectotype ” are added on the slide near the respective specimens, an Indian ink line separates the two specimens.	en	Magoga, Giulia, Montagna, Matteo, Marziali, Laura, Rossaro, Bruno, Disaa (2017): Revision of type and non-type material assigned to the genus Orthocladius by Goetghebuer (1940 - 1950), deposited in the Royal Belgian Institute of Natural Sciences (Diptera: Chironomidae). Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2): 723-749, DOI: 10.1515/aemnp-2017-0097, URL: http://dx.doi.org/10.1515/aemnp-2017-0097
039435190B43C87FFEB6FC4CFF315F3E.taxon	discussion	Comments. GOETGHEBUER (1942) wrote in his original publication, in a footnote on page 664: ‘ came from the Grossen Plöner See, more precise data on the collecting locality and time cannot be given’. ASHE & O’CONNOR (2012) listed Orthocladius succineus among nomina dubia in Orthocladiinae. The specimens are in very poor condition, but the observable characters allow to conclude that the species fits reasonably well in Lapposmittia because of bare wings, eyes and squama, well visible pulvilli, a transparent triangular anal point, well developed virga, a sternapodeme with oral projections, inferior volsella with a rectangular dorsal lobe, and a gently curved gonostylus without crista dorsalis. The generic diagnosis must be emended, because the costa is moderately extended, the antennal plume is not reduced, and the sternapodeme has only moderately developed anterior projections.	en	Magoga, Giulia, Montagna, Matteo, Marziali, Laura, Rossaro, Bruno, Disaa (2017): Revision of type and non-type material assigned to the genus Orthocladius by Goetghebuer (1940 - 1950), deposited in the Royal Belgian Institute of Natural Sciences (Diptera: Chironomidae). Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2): 723-749, DOI: 10.1515/aemnp-2017-0097, URL: http://dx.doi.org/10.1515/aemnp-2017-0097
039435190B42C871FF19FADEFF915F10.taxon	description	(Figs 20 – 23)	en	Magoga, Giulia, Montagna, Matteo, Marziali, Laura, Rossaro, Bruno, Disaa (2017): Revision of type and non-type material assigned to the genus Orthocladius by Goetghebuer (1940 - 1950), deposited in the Royal Belgian Institute of Natural Sciences (Diptera: Chironomidae). Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2): 723-749, DOI: 10.1515/aemnp-2017-0097, URL: http://dx.doi.org/10.1515/aemnp-2017-0097
039435190B42C871FF19FADEFF915F10.taxon	materials_examined	Type material examined. Orthocladius tolleti: HOLOTYPE: ♁ pinned, now mounted on slide, labelled ‘ Orthocladius tolleti n. sp. // type ♁ / M. Goetghebuer // type locality Onoz-Spy, 14. V. 1942, R. Tollet legit // R. I. SC. N. B. 18.073 / Coll. et det. M. Goetghebuer’.	en	Magoga, Giulia, Montagna, Matteo, Marziali, Laura, Rossaro, Bruno, Disaa (2017): Revision of type and non-type material assigned to the genus Orthocladius by Goetghebuer (1940 - 1950), deposited in the Royal Belgian Institute of Natural Sciences (Diptera: Chironomidae). Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2): 723-749, DOI: 10.1515/aemnp-2017-0097, URL: http://dx.doi.org/10.1515/aemnp-2017-0097
039435190B42C871FF19FADEFF915F10.taxon	discussion	Comments. Only the last three abdominal segments and the genitalia are preserved. A detailed examination of the hypopygium shows that it belongs to the subgenus Euorthocladius Thienemann, 1935, but it does not fit with any other known species. ASHE & O’CONNOR (2012: 703) listed the name among nomina dubia in Orthocladiinae; despite the specimen being in very poor condition, it is considered a valid species.	en	Magoga, Giulia, Montagna, Matteo, Marziali, Laura, Rossaro, Bruno, Disaa (2017): Revision of type and non-type material assigned to the genus Orthocladius by Goetghebuer (1940 - 1950), deposited in the Royal Belgian Institute of Natural Sciences (Diptera: Chironomidae). Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2): 723-749, DOI: 10.1515/aemnp-2017-0097, URL: http://dx.doi.org/10.1515/aemnp-2017-0097
039435190B4CC873FF01FF62FC2258BE.taxon	description	(Figs 24 – 29)	en	Magoga, Giulia, Montagna, Matteo, Marziali, Laura, Rossaro, Bruno, Disaa (2017): Revision of type and non-type material assigned to the genus Orthocladius by Goetghebuer (1940 - 1950), deposited in the Royal Belgian Institute of Natural Sciences (Diptera: Chironomidae). Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2): 723-749, DOI: 10.1515/aemnp-2017-0097, URL: http://dx.doi.org/10.1515/aemnp-2017-0097
039435190B4CC873FF01FF62FC2258BE.taxon	materials_examined	Type material examined. Dactylocladius glabripennis: LECTOTYPE (designated by PINDER & CRANSTON 1976): pinned ♁ without hypopygium and a ♁ hypopygium, mounted on slide by P. Cranston, type locality: ‘ Flanders, Destelbergen, 26. III. 1916 ’. PARALECTOTYPE: 1 pinned ♁, now mounted on slide, labelled ‘ Dactylocladius glabripennis Coll. et det. Gtgh. M. Goetghebuer // Flanders, Destelbergen, 26. III. 1916 ’. Additional material examined. 1 pinned ♁ now mounted on slide, labelled ‘ M. Goetghebuer det. Orthocladius glabripennis Staeg. // R. Mus. Hist. Nat. Belg. I. G. 14.228 // Heusden 20. III. 1916 M. Goetghebuer’; 1 pinned ♁ without hypopygium, now mounted on slide, labelled ‘ Arendonck 29. VI. 1926 A. Ball. ’; 1 pinned ♁ without hypopygium, now mounted on slide, labelled ‘ Baraque Fraiture (Mare) 11. VIII. 1954 // R. I. SC. N. B. I. G. 21.717 ’.	en	Magoga, Giulia, Montagna, Matteo, Marziali, Laura, Rossaro, Bruno, Disaa (2017): Revision of type and non-type material assigned to the genus Orthocladius by Goetghebuer (1940 - 1950), deposited in the Royal Belgian Institute of Natural Sciences (Diptera: Chironomidae). Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2): 723-749, DOI: 10.1515/aemnp-2017-0097, URL: http://dx.doi.org/10.1515/aemnp-2017-0097
039435190B4CC873FF01FF62FC2258BE.taxon	discussion	Comments. The lectotype of O. glabripennis is a pinned male without hypopygium, the isolated hypopygium was mounted on a slide and figured by LANGTON & CRANSTON (1991); in RBINS there was also another pinned male from the same type locality, now mounted on a slide; this paralectotype and the other (non-type) mounted specimens are provided with a large, about 30 – 40 μm wide dorsal lobe on the inferior volsella, projecting from a gonocoxite 347 μm long and 42 μm wide; all the above characters agree with the description by LANGTON & CRANSTON (1991).	en	Magoga, Giulia, Montagna, Matteo, Marziali, Laura, Rossaro, Bruno, Disaa (2017): Revision of type and non-type material assigned to the genus Orthocladius by Goetghebuer (1940 - 1950), deposited in the Royal Belgian Institute of Natural Sciences (Diptera: Chironomidae). Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2): 723-749, DOI: 10.1515/aemnp-2017-0097, URL: http://dx.doi.org/10.1515/aemnp-2017-0097
039435190B4FC873FEC9FDB8FF725A09.taxon	materials_examined	Type material examined. LECTOTYPE (designated by SOPONIS 1977): ♁ (slide) labelled ‘ Orthocladius lapponicus n. sp. // Env. d’Abisko Lap. Suedoise 1939 A. Thienemann // type M. Goetghebuer // lectotype A. R. Soponis, 1975 ’. PARALECTOTYPE: ♁ (slide), labelled: ‘ Orthocladius lapponicus n. sp. same locality // R. I. SC. N. B. 18.073 / Coll. et det. M. Goetghebuer Paratype – AR Soponis 1975 ’.	en	Magoga, Giulia, Montagna, Matteo, Marziali, Laura, Rossaro, Bruno, Disaa (2017): Revision of type and non-type material assigned to the genus Orthocladius by Goetghebuer (1940 - 1950), deposited in the Royal Belgian Institute of Natural Sciences (Diptera: Chironomidae). Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2): 723-749, DOI: 10.1515/aemnp-2017-0097, URL: http://dx.doi.org/10.1515/aemnp-2017-0097
039435190B4FC873FEC9FDB8FF725A09.taxon	discussion	Comments. The species is just mounted on a slide and well described in another publication (SOPONIS 1977). Nothing to add here.	en	Magoga, Giulia, Montagna, Matteo, Marziali, Laura, Rossaro, Bruno, Disaa (2017): Revision of type and non-type material assigned to the genus Orthocladius by Goetghebuer (1940 - 1950), deposited in the Royal Belgian Institute of Natural Sciences (Diptera: Chironomidae). Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2): 723-749, DOI: 10.1515/aemnp-2017-0097, URL: http://dx.doi.org/10.1515/aemnp-2017-0097
039435190B4FC873FEEEFCD8F9345CE4.taxon	description	(Figs 30 – 36)	en	Magoga, Giulia, Montagna, Matteo, Marziali, Laura, Rossaro, Bruno, Disaa (2017): Revision of type and non-type material assigned to the genus Orthocladius by Goetghebuer (1940 - 1950), deposited in the Royal Belgian Institute of Natural Sciences (Diptera: Chironomidae). Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2): 723-749, DOI: 10.1515/aemnp-2017-0097, URL: http://dx.doi.org/10.1515/aemnp-2017-0097
039435190B4FC873FEEEFCD8F9345CE4.taxon	materials_examined	Type material examined. HOLOTYPE: ♁ mounted on slide, labelled: ‘ Orthocladius mitisi 1938 // type locality: Basse Autriche // Coll et det. M. Goetghebuer Orthocladius mitisi Goetgh. R. I. Sc. N. B. 18.073 ’.	en	Magoga, Giulia, Montagna, Matteo, Marziali, Laura, Rossaro, Bruno, Disaa (2017): Revision of type and non-type material assigned to the genus Orthocladius by Goetghebuer (1940 - 1950), deposited in the Royal Belgian Institute of Natural Sciences (Diptera: Chironomidae). Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2): 723-749, DOI: 10.1515/aemnp-2017-0097, URL: http://dx.doi.org/10.1515/aemnp-2017-0097
039435190B4FC873FEEEFCD8F9345CE4.taxon	discussion	Comments. The holotype of Orthocladius mitisi was mounted on a slide from a specimen formerly compressed in isinglass between two layers of celluloid (LANGTON & CRANSTON 1991). LANGTON & CRANSTON (1991) considered O. mitisi as a junior synonym of O. glabripennis (Goetghebuer, 1921) on the basis of the genitalia and similarity between pupal exuviae labelled ‘ mitisi’ at the Zoologische Staatssammlung des Bayerischen Staates, Munich, Germany (ZSM) and the pupal exuviae of O. glabripenni s (LANGTON 1984). Except for missing antennae the specimen is rather well preserved and recognized here as a distinct species. This conclusion is based on the following evidence. The dorsal lobe on the inferior volsella is very narrow, 13 – 15 μm wide on a gonocoxite 277 μm long and 40 μm wide, whereas in O. glabripennis the dorsal lobe is proportionally much wider. This large difference supports the conclusion that O. mitisi and O. glabripennis are different species. In addition, the thorax in O. mitisi has light brown vittae, while in O. glabripennis the vittae are darker. The hypopygium of the holotype of O. mitisi has some similarity with other species in Orthocladius s. str., such as O. timoni (see below), O. excavatus Brundin, 1947 and O. marchettii Rossaro & Prato, 1991, but all are well different from O. glabripennis. See also the section on Orthocladius timoni below.	en	Magoga, Giulia, Montagna, Matteo, Marziali, Laura, Rossaro, Bruno, Disaa (2017): Revision of type and non-type material assigned to the genus Orthocladius by Goetghebuer (1940 - 1950), deposited in the Royal Belgian Institute of Natural Sciences (Diptera: Chironomidae). Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2): 723-749, DOI: 10.1515/aemnp-2017-0097, URL: http://dx.doi.org/10.1515/aemnp-2017-0097
039435190B4EC875FF35FAAEF9345DE0.taxon	description	(Figs 37 – 40)	en	Magoga, Giulia, Montagna, Matteo, Marziali, Laura, Rossaro, Bruno, Disaa (2017): Revision of type and non-type material assigned to the genus Orthocladius by Goetghebuer (1940 - 1950), deposited in the Royal Belgian Institute of Natural Sciences (Diptera: Chironomidae). Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2): 723-749, DOI: 10.1515/aemnp-2017-0097, URL: http://dx.doi.org/10.1515/aemnp-2017-0097
039435190B4EC875FF35FAAEF9345DE0.taxon	materials_examined	Type material examined. LECTOTYPE (pinned ♁, present designation) and PARALECTOTYPE (pinned ♁), both now mounted on the same slide and labelled: ‘ Orthocladius timoni n. sp. // type ♁ Goetghebuer // Env. Marseille 1938, leg. Timon David // R. I. SC. N. B. 18.073 / Coll. et det. M. Goetghebuer’. The labels “ Lectotype ” and “ Paralectotype ” are added on the slide near the respective specimens, an Indian ink line separates the two specimens.	en	Magoga, Giulia, Montagna, Matteo, Marziali, Laura, Rossaro, Bruno, Disaa (2017): Revision of type and non-type material assigned to the genus Orthocladius by Goetghebuer (1940 - 1950), deposited in the Royal Belgian Institute of Natural Sciences (Diptera: Chironomidae). Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2): 723-749, DOI: 10.1515/aemnp-2017-0097, URL: http://dx.doi.org/10.1515/aemnp-2017-0097
039435190B4EC875FF35FAAEF9345DE0.taxon	discussion	Comments. Orthocladius timoni was listed as a nomen dubium in Orthocladiinae by ASHE & O’CONNOR (2012). The specimens are in good condition and the examination of the hypopygium allows the assignment of the species to the subgenus Orthocladius s. str., but a separation from other species within the subgenus is not easy without associated exuviae or molecular data even if the details of the hypopygium, such as the anal point, the superior and inferior volsella and the presence of virga suggest a possible conspecificity with O. (O.) excavatus Brundin, 1947; the species can be considered tentatively valid, but for the same reasons reported for other species of the subgenus at present a formal synonymy is not recommended.	en	Magoga, Giulia, Montagna, Matteo, Marziali, Laura, Rossaro, Bruno, Disaa (2017): Revision of type and non-type material assigned to the genus Orthocladius by Goetghebuer (1940 - 1950), deposited in the Royal Belgian Institute of Natural Sciences (Diptera: Chironomidae). Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2): 723-749, DOI: 10.1515/aemnp-2017-0097, URL: http://dx.doi.org/10.1515/aemnp-2017-0097
039435190B49C874FF57FAACF9125F19.taxon	description	(Figs 41 ‒ 46)	en	Magoga, Giulia, Montagna, Matteo, Marziali, Laura, Rossaro, Bruno, Disaa (2017): Revision of type and non-type material assigned to the genus Orthocladius by Goetghebuer (1940 - 1950), deposited in the Royal Belgian Institute of Natural Sciences (Diptera: Chironomidae). Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2): 723-749, DOI: 10.1515/aemnp-2017-0097, URL: http://dx.doi.org/10.1515/aemnp-2017-0097
039435190B49C874FF57FAACF9125F19.taxon	materials_examined	Type material examined. LECTOTYPE (present designation): ♁ in isinglass, now mounted on slide, labelled: ‘ Orth. hockaiensis Hockai Hautes Fagnes 17. VI. 1932 // type ♁ / M. Goetghebuer // R. I. SC. N. B. 18.073 / Coll. et det. M. Goetghebuer ”. PARALECTOTYPES: 2 ♁♁ in isinglass, now mounted on slide, with hypopygium only, same locality, except sampling date: 19. VI. 32.	en	Magoga, Giulia, Montagna, Matteo, Marziali, Laura, Rossaro, Bruno, Disaa (2017): Revision of type and non-type material assigned to the genus Orthocladius by Goetghebuer (1940 - 1950), deposited in the Royal Belgian Institute of Natural Sciences (Diptera: Chironomidae). Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2): 723-749, DOI: 10.1515/aemnp-2017-0097, URL: http://dx.doi.org/10.1515/aemnp-2017-0097
039435190B49C874FF57FAACF9125F19.taxon	description	Redescription. Antennal plume well developed. Wing: squama (broken) without visible setae, with fine punctation, Cu 1 strongly curved. Pulvilli present. Virga very long and large, similar to the one observed in P. macrovirgatus Saether & Sublette, 1983, but much longer, about 100 micron long.	en	Magoga, Giulia, Montagna, Matteo, Marziali, Laura, Rossaro, Bruno, Disaa (2017): Revision of type and non-type material assigned to the genus Orthocladius by Goetghebuer (1940 - 1950), deposited in the Royal Belgian Institute of Natural Sciences (Diptera: Chironomidae). Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2): 723-749, DOI: 10.1515/aemnp-2017-0097, URL: http://dx.doi.org/10.1515/aemnp-2017-0097
039435190B49C874FF57FAACF9125F19.taxon	discussion	Comments. ASHE & O’CONNOR (2012) listed Orthocladius hockaiensis among nomina dubia in Orthocladiinae; the examination of type material shows that the species belongs to the genus Pseudorthocladius Goetghebuer, 1943 and does not fit with any other described species.	en	Magoga, Giulia, Montagna, Matteo, Marziali, Laura, Rossaro, Bruno, Disaa (2017): Revision of type and non-type material assigned to the genus Orthocladius by Goetghebuer (1940 - 1950), deposited in the Royal Belgian Institute of Natural Sciences (Diptera: Chironomidae). Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2): 723-749, DOI: 10.1515/aemnp-2017-0097, URL: http://dx.doi.org/10.1515/aemnp-2017-0097
039435190B4BC877FE7BFAB1FEFF5F1B.taxon	materials_examined	Material examined. 1 ♁ pinned, now mounted on slide, labelled ‘ Orthocladius muscicola, Kieff Coll. et det. M. Goetghebuer // Hockai, 1. VII. 1920 // 817 ’.	en	Magoga, Giulia, Montagna, Matteo, Marziali, Laura, Rossaro, Bruno, Disaa (2017): Revision of type and non-type material assigned to the genus Orthocladius by Goetghebuer (1940 - 1950), deposited in the Royal Belgian Institute of Natural Sciences (Diptera: Chironomidae). Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2): 723-749, DOI: 10.1515/aemnp-2017-0097, URL: http://dx.doi.org/10.1515/aemnp-2017-0097
039435190B4BC877FE7BFAB1FEFF5F1B.taxon	discussion	Comments. The specimen is not from the type locality. The hypopygium is lacking, but the wings with coarse points, squama with setae and the well-developed acrostichals suggest conspecificity with B. muscicola (Kieffer, 1906). It is non-type material so nothing more is here stated other that it belongs to Bryophaenocladius Thienemann, 1934.	en	Magoga, Giulia, Montagna, Matteo, Marziali, Laura, Rossaro, Bruno, Disaa (2017): Revision of type and non-type material assigned to the genus Orthocladius by Goetghebuer (1940 - 1950), deposited in the Royal Belgian Institute of Natural Sciences (Diptera: Chironomidae). Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2): 723-749, DOI: 10.1515/aemnp-2017-0097, URL: http://dx.doi.org/10.1515/aemnp-2017-0097
039435190B4AC869FE65FF62FE23585E.taxon	description	(Figs 47 ‒ 52)	en	Magoga, Giulia, Montagna, Matteo, Marziali, Laura, Rossaro, Bruno, Disaa (2017): Revision of type and non-type material assigned to the genus Orthocladius by Goetghebuer (1940 - 1950), deposited in the Royal Belgian Institute of Natural Sciences (Diptera: Chironomidae). Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2): 723-749, DOI: 10.1515/aemnp-2017-0097, URL: http://dx.doi.org/10.1515/aemnp-2017-0097
039435190B4AC869FE65FF62FE23585E.taxon	materials_examined	Material examined. 1 ♁ in isinglass, now mounted on slide, labelled ‘ Orthocladius corax // locality Silésie 23. III. 1944 // ex. coll. Bettinger, Belg. I. G. 12.595 ’.	en	Magoga, Giulia, Montagna, Matteo, Marziali, Laura, Rossaro, Bruno, Disaa (2017): Revision of type and non-type material assigned to the genus Orthocladius by Goetghebuer (1940 - 1950), deposited in the Royal Belgian Institute of Natural Sciences (Diptera: Chironomidae). Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2): 723-749, DOI: 10.1515/aemnp-2017-0097, URL: http://dx.doi.org/10.1515/aemnp-2017-0097
039435190B4AC869FE65FF62FE23585E.taxon	discussion	Comments. ASHE & O’CONNOR (2012) listed Orthocladius corax Kieffer, 1924 among nomina dubia in Orthocladiinae. The bare eyes, the fine wing punctuation, squama with setae, presence of acrostichals, absence of pulvilli, the presence of an anal point rounded at the apex suggest inclusion of the species in Hydrobaenus Fries, 1830. The species appears to be valid based on specimens examined, however the material examined is non-type material, even if it comes from the type area (Silésie), but being collected twenty years later. At present it cannot be ascertained whether Goetghebuer’s identification of the RBINS specimen is correct or a misidentification of O. corax.	en	Magoga, Giulia, Montagna, Matteo, Marziali, Laura, Rossaro, Bruno, Disaa (2017): Revision of type and non-type material assigned to the genus Orthocladius by Goetghebuer (1940 - 1950), deposited in the Royal Belgian Institute of Natural Sciences (Diptera: Chironomidae). Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2): 723-749, DOI: 10.1515/aemnp-2017-0097, URL: http://dx.doi.org/10.1515/aemnp-2017-0097
039435190B55C869FED8FEC2FC075BE4.taxon	materials_examined	Material examined. 1 ♀ pinned, now mounted on slide, labelled ‘ Dactylocladius spitzbergensis // Greenland East 10. VIII. 1926 // R. I. SC. N. B. 18.073 / Coll. et det. M. Goetghebuer’.	en	Magoga, Giulia, Montagna, Matteo, Marziali, Laura, Rossaro, Bruno, Disaa (2017): Revision of type and non-type material assigned to the genus Orthocladius by Goetghebuer (1940 - 1950), deposited in the Royal Belgian Institute of Natural Sciences (Diptera: Chironomidae). Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2): 723-749, DOI: 10.1515/aemnp-2017-0097, URL: http://dx.doi.org/10.1515/aemnp-2017-0097
039435190B55C869FED8FEC2FC075BE4.taxon	discussion	Comments. ASHE & O’CONNOR (2012) listed Dactylocladius spitzbergensis among nomina dubia probably in Orthocladius (Eudactylocladius). The examined female is from Greenland, not from the type locality (Spitzbergen, Cross Bay, Ebelthof harbour). It is very damaged, including the genitalia, which do not allow an accurate redescription or an evaluation whether Goetghebuer’s determination of this specimen was a correct identification of D. spitzbergensis. Therefore, no change in the generic placement and status is proposed here (see ASHE & O’CONNOR 2012).	en	Magoga, Giulia, Montagna, Matteo, Marziali, Laura, Rossaro, Bruno, Disaa (2017): Revision of type and non-type material assigned to the genus Orthocladius by Goetghebuer (1940 - 1950), deposited in the Royal Belgian Institute of Natural Sciences (Diptera: Chironomidae). Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2): 723-749, DOI: 10.1515/aemnp-2017-0097, URL: http://dx.doi.org/10.1515/aemnp-2017-0097
039435190B55C869FECBFCA8FC2E5D34.taxon	materials_examined	Material examined. 2 pinned ♁♁, now mounted on the same slide labelled ‘ Orthocladius sydowi n. sp. // Tyrol 1941 leg. Dr. Sydow Deut. Mus. Berlin // R. I. SC. N. B. 18.073 / Coll. et det. M. Goetghebuer’.	en	Magoga, Giulia, Montagna, Matteo, Marziali, Laura, Rossaro, Bruno, Disaa (2017): Revision of type and non-type material assigned to the genus Orthocladius by Goetghebuer (1940 - 1950), deposited in the Royal Belgian Institute of Natural Sciences (Diptera: Chironomidae). Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2): 723-749, DOI: 10.1515/aemnp-2017-0097, URL: http://dx.doi.org/10.1515/aemnp-2017-0097
039435190B55C869FECBFCA8FC2E5D34.taxon	discussion	Comments. The specimens can be easily identified as O. (Mesorthocladius) frigidus. The specific epithet ‘ sydowi’ is not reported in ASHE & O’CONNOR (2012), nor in any other publication we are aware of. Therefore, Orthocladius ‘ sydowi’ is treated as an unavailable collection name here.	en	Magoga, Giulia, Montagna, Matteo, Marziali, Laura, Rossaro, Bruno, Disaa (2017): Revision of type and non-type material assigned to the genus Orthocladius by Goetghebuer (1940 - 1950), deposited in the Royal Belgian Institute of Natural Sciences (Diptera: Chironomidae). Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2): 723-749, DOI: 10.1515/aemnp-2017-0097, URL: http://dx.doi.org/10.1515/aemnp-2017-0097
039435190B55C869FEBCFBD8FC2A5C47.taxon	materials_examined	Material examined. 1 ♁ in isinglass, mounted on slide, labelled: ‘ Orthocladius decoratus Holmgren det. Goetghebuer // type locality Hoels eksp. 1930 Østgrønland Jull‘; 1 ♀ in isinglass, labelled: ‘ Orthocladius decoratus ♀ // type locality “ Groenland 8.26 Exped. Courguoi // R. I. SC. N. B. 18.073 / Coll. et det. M. Goetghebuer’.	en	Magoga, Giulia, Montagna, Matteo, Marziali, Laura, Rossaro, Bruno, Disaa (2017): Revision of type and non-type material assigned to the genus Orthocladius by Goetghebuer (1940 - 1950), deposited in the Royal Belgian Institute of Natural Sciences (Diptera: Chironomidae). Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2): 723-749, DOI: 10.1515/aemnp-2017-0097, URL: http://dx.doi.org/10.1515/aemnp-2017-0097
039435190B55C869FEBCFBD8FC2A5C47.taxon	discussion	Comments. The specimens match the published descriptions of O. decoratus (SOPONIS 1977, ROSSARO et al. 2003).	en	Magoga, Giulia, Montagna, Matteo, Marziali, Laura, Rossaro, Bruno, Disaa (2017): Revision of type and non-type material assigned to the genus Orthocladius by Goetghebuer (1940 - 1950), deposited in the Royal Belgian Institute of Natural Sciences (Diptera: Chironomidae). Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2): 723-749, DOI: 10.1515/aemnp-2017-0097, URL: http://dx.doi.org/10.1515/aemnp-2017-0097
039435190B55C86BFEA8FACBFE8F5B9E.taxon	description	(Figs 53 ‒ 58)	en	Magoga, Giulia, Montagna, Matteo, Marziali, Laura, Rossaro, Bruno, Disaa (2017): Revision of type and non-type material assigned to the genus Orthocladius by Goetghebuer (1940 - 1950), deposited in the Royal Belgian Institute of Natural Sciences (Diptera: Chironomidae). Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2): 723-749, DOI: 10.1515/aemnp-2017-0097, URL: http://dx.doi.org/10.1515/aemnp-2017-0097
039435190B55C86BFEA8FACBFE8F5B9E.taxon	materials_examined	Material examined. 1 ♁ pinned labelled: ‘ O. oblidens Edw. Brno 1937 (Zavrel) // R. I. SC. N. B. 18.073 / Coll. et det. M. Goetghebuer’; 1 ♁ in isinglass labelled: ‘ Orthocladius rhyacophilus K. Brno, Zavrel // R. I. SC. N. B. 18.073 / Coll. et det. M. Goetghebuer’, all now mounted on slides.	en	Magoga, Giulia, Montagna, Matteo, Marziali, Laura, Rossaro, Bruno, Disaa (2017): Revision of type and non-type material assigned to the genus Orthocladius by Goetghebuer (1940 - 1950), deposited in the Royal Belgian Institute of Natural Sciences (Diptera: Chironomidae). Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2): 723-749, DOI: 10.1515/aemnp-2017-0097, URL: http://dx.doi.org/10.1515/aemnp-2017-0097
039435190B55C86BFEA8FACBFE8F5B9E.taxon	discussion	Comments. The two specimens apparently come from the same locality and are conspecific. The dorsal lobes of the inferior volsellae and the absence of virga fit the description of O. rhyacobius Kieffer, 1911, not with that of O. oblidens (Walker, 1856) (ROSSARO et al. 2003). KIEFFER (1911: 181 ‒ 182) separated O. rhyacobius from O. rhyacophilus by the color of the thoracic vittae (black in O. rhyacophilus versus yolk-colored ‘ vitellines’ in O. rhyacobius) and by the relative lengths of palpomeres (Pm) 3 and 4, with the Pm 3 being longer than Pm 4 in O. rhyacobius (‘ articles 2 des palpes plus long che le 3 ’) versus the reverse in O. rhyacophilus (‘ articles 2 des palpes plus court che le 3 ’). It is emphasized (SPIES & SAETHER 2004: 25 ‒ 26), that Pm 3 and Pm 4 correspond to articles 2 and 3 of KIEFFER (1911). All the examined adult specimens of various species in Orthocladius s. str. that are present in the Department of Food, Environmental and Nutritional Science at the University of Milano (DeFENS) have Pm 3 longer than or subequal to Pm 4, never shorter, with the sole possible exception of O. (O.) wetterensis Brundin, 1956. The color of the vittae is variable, winter specimens are often black, while spring specimens are lighter. The RBINS males examined are in poor condition, the color of the vittae was not registered in the pinned specimens and cannot be evaluated in the mounted slide. Consequently, in light of the problems discussed in detail by SPIES & SAETHER (2004: 24 ‒ 26), the status of these two species (O. rhycobius and O. rhyacophilus) remains unresolved. In the present work, the solution proposed by ASHE & O’CONNOR (2012) is followed, considering Orthocladius (Orthocladius) rhyacophilous Kieffer, 1911, a nomen dubium in Orthocladius.	en	Magoga, Giulia, Montagna, Matteo, Marziali, Laura, Rossaro, Bruno, Disaa (2017): Revision of type and non-type material assigned to the genus Orthocladius by Goetghebuer (1940 - 1950), deposited in the Royal Belgian Institute of Natural Sciences (Diptera: Chironomidae). Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2): 723-749, DOI: 10.1515/aemnp-2017-0097, URL: http://dx.doi.org/10.1515/aemnp-2017-0097
039435190B57C86BFEB6FD02FF295D09.taxon	materials_examined	Material examined. 1 ♁ pinned, now mounted on slide, labelled: ‘ M. Goetghebuer det. Orthocladius rubicundus Meig // Orthocladius rubicundus Meig. // Virton, 2. IX. 1921 // R. Mus. Hist. Nat. Belg. I. G. 14.228 ’; 1 ♁ in isinglass, now mounted on slide, labelled: ‘ O. rhyacophilus K. Brno (Zavrel) // R. I. SC. N. B. 18.073 / Coll. et det. M. Goetghebuer’.	en	Magoga, Giulia, Montagna, Matteo, Marziali, Laura, Rossaro, Bruno, Disaa (2017): Revision of type and non-type material assigned to the genus Orthocladius by Goetghebuer (1940 - 1950), deposited in the Royal Belgian Institute of Natural Sciences (Diptera: Chironomidae). Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2): 723-749, DOI: 10.1515/aemnp-2017-0097, URL: http://dx.doi.org/10.1515/aemnp-2017-0097
039435190B57C86BFEB6FD02FF295D09.taxon	discussion	Comments. Both specimens have weak and reduced (about 30 μm long) dorsocentrals (SOPONIS 1977) and genitalia compatible with O. (O.) rubicundus (ROSSARO et al. 2003); the shape of genitalia and the observation that all the other Orthocladius species known from the West Palaearctic possess more robust and longer (about 70 μm long) dorsocentrals allows us to assign both specimens to O. (O.) rubicundus.	en	Magoga, Giulia, Montagna, Matteo, Marziali, Laura, Rossaro, Bruno, Disaa (2017): Revision of type and non-type material assigned to the genus Orthocladius by Goetghebuer (1940 - 1950), deposited in the Royal Belgian Institute of Natural Sciences (Diptera: Chironomidae). Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2): 723-749, DOI: 10.1515/aemnp-2017-0097, URL: http://dx.doi.org/10.1515/aemnp-2017-0097
039435190B57C86BFED4FB95FC255F02.taxon	description	(Figs 59 ‒ 62) Chironomus consobrinus (Holmgren, 1869): 44.	en	Magoga, Giulia, Montagna, Matteo, Marziali, Laura, Rossaro, Bruno, Disaa (2017): Revision of type and non-type material assigned to the genus Orthocladius by Goetghebuer (1940 - 1950), deposited in the Royal Belgian Institute of Natural Sciences (Diptera: Chironomidae). Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2): 723-749, DOI: 10.1515/aemnp-2017-0097, URL: http://dx.doi.org/10.1515/aemnp-2017-0097
039435190B57C86BFED4FB95FC255F02.taxon	materials_examined	Material examined. 1 pinned ♁, now mounted on slide, labelled: ‘ Orthocladius crassicornis Gtgh. // type ♁ / M. Goetghebuer // Env. Dublin (Irlanda) 1948 day men. Humphries // R. I. SC. N. B. 18.073 / Coll. et det. M. Goetghebuer’.	en	Magoga, Giulia, Montagna, Matteo, Marziali, Laura, Rossaro, Bruno, Disaa (2017): Revision of type and non-type material assigned to the genus Orthocladius by Goetghebuer (1940 - 1950), deposited in the Royal Belgian Institute of Natural Sciences (Diptera: Chironomidae). Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2): 723-749, DOI: 10.1515/aemnp-2017-0097, URL: http://dx.doi.org/10.1515/aemnp-2017-0097
039435190B57C86BFED4FB95FC255F02.taxon	discussion	Comments. The specimen is labelled as type, but it does not originate from the type locality, which is the lake of Plön, and the sampling date does not belong to the type material. The preparation is very transparent, but can be examined using phase contrast. Examination of the genitalia suggests that the specimen belongs to O. (P.) consobrinus as evidenced by the very pronounced and pointed crista dorsalis on the gonostylus and the long and slender dorsal lobe of the inferior volsella. Comparison with the lectotype conserved in Naturhistoriska Riksmuseet, Stockholm (NHRM), supports the identification. The synonymy of O. crassicornis with O. (P.) consobrinus by PINDER & CRANSTON (1976) is supported by the present material.	en	Magoga, Giulia, Montagna, Matteo, Marziali, Laura, Rossaro, Bruno, Disaa (2017): Revision of type and non-type material assigned to the genus Orthocladius by Goetghebuer (1940 - 1950), deposited in the Royal Belgian Institute of Natural Sciences (Diptera: Chironomidae). Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2): 723-749, DOI: 10.1515/aemnp-2017-0097, URL: http://dx.doi.org/10.1515/aemnp-2017-0097
039435190B56C86AFED6FB91FF8B5C58.taxon	materials_examined	Material examined. 2 ♁♁ pinned, now mounted on slides, labelled: ‘ Orthocladius lignicola K. // R. I. SC. N. B. 18.073 / Coll. et det. M. Goetghebuer’, type locality not given.	en	Magoga, Giulia, Montagna, Matteo, Marziali, Laura, Rossaro, Bruno, Disaa (2017): Revision of type and non-type material assigned to the genus Orthocladius by Goetghebuer (1940 - 1950), deposited in the Royal Belgian Institute of Natural Sciences (Diptera: Chironomidae). Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2): 723-749, DOI: 10.1515/aemnp-2017-0097, URL: http://dx.doi.org/10.1515/aemnp-2017-0097
039435190B56C86AFED6FB91FF8B5C58.taxon	discussion	Comments. The differences between the species described in the subgenus Symposiocladius Cranston, 1982 (SAETHER 2004) are really small and the two RBINS specimens are in poor condition, with some body parts missing. Nevertheless, the hypopygeal structure confirms that the specimens belong to Symposiocladius and the length ratio of Pm 3 / Pm 4 = 114 / 78 (about 1.5) supports the identification of O. (S.) lignicola.	en	Magoga, Giulia, Montagna, Matteo, Marziali, Laura, Rossaro, Bruno, Disaa (2017): Revision of type and non-type material assigned to the genus Orthocladius by Goetghebuer (1940 - 1950), deposited in the Royal Belgian Institute of Natural Sciences (Diptera: Chironomidae). Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2): 723-749, DOI: 10.1515/aemnp-2017-0097, URL: http://dx.doi.org/10.1515/aemnp-2017-0097
039435190B56C86CFEFDFAC4FCFC585E.taxon	materials_examined	Material examined. 1 ♁ in isinglass now mounted on slide, labelled: ‘ Rheorthocladius sp. A. 416 // Heusden 20.3. 16 M. Goetghebuer // Non-type, type locality Ploen (GERMANY), 1937 Humphries, P. S. Cranston, 1975 // R. I. SC. N. B. 18.073 / Coll. et det. M. Goetghebuer’.	en	Magoga, Giulia, Montagna, Matteo, Marziali, Laura, Rossaro, Bruno, Disaa (2017): Revision of type and non-type material assigned to the genus Orthocladius by Goetghebuer (1940 - 1950), deposited in the Royal Belgian Institute of Natural Sciences (Diptera: Chironomidae). Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2): 723-749, DOI: 10.1515/aemnp-2017-0097, URL: http://dx.doi.org/10.1515/aemnp-2017-0097
039435190B56C86CFEFDFAC4FCFC585E.taxon	discussion	Comments. The genus Rheorthocladius was created by THIENEMANN (1935) to include species of Orthocladius on the basis of their metamorphic stages (pupal exuviae). This male is associated with pupal exuviae labelled as Rheorthocladius sp. A, deposited in the Zoologische Staatssammlung München (ZSM). The last antennal flagellomere is 1066  m long, the total length of the remaining flagellomeres is 379  m, AR = 2.81; Pm 3 length 151  m, Pm 4 length 116  m, length ratio Pm 3 / Pm 4 = 1.30; dorsocentrals 13; tergite IX with 13 setae. Hypopygium as in O. (S.) ruffoi (see ROSSARO et al. 2003) with phallapodeme distinctly curved apically. A comparison with the holotype allows the assignment of the studied specimen to O. (S.) ruffoi, even though in the holotype of O. (S.) ruffoi the length ratio Pm 3 / Pm 4 is near to 1, instead of 1.30 (ROSSARO et al. 2003).	en	Magoga, Giulia, Montagna, Matteo, Marziali, Laura, Rossaro, Bruno, Disaa (2017): Revision of type and non-type material assigned to the genus Orthocladius by Goetghebuer (1940 - 1950), deposited in the Royal Belgian Institute of Natural Sciences (Diptera: Chironomidae). Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2): 723-749, DOI: 10.1515/aemnp-2017-0097, URL: http://dx.doi.org/10.1515/aemnp-2017-0097
039435190B53C86FFE33FB7FFC8C5F03.taxon	materials_examined	Material examined. 2 specimens in isinglass, now mounted on slides: one ♁ and one ♀ labelled: ‘ D. waltli Mg. // Hockai Hautes Fagnes, 11. VI. 1912 // R. I. SC. N. B. 18.073 / Coll. et det. M. Goetghebuer’.	en	Magoga, Giulia, Montagna, Matteo, Marziali, Laura, Rossaro, Bruno, Disaa (2017): Revision of type and non-type material assigned to the genus Orthocladius by Goetghebuer (1940 - 1950), deposited in the Royal Belgian Institute of Natural Sciences (Diptera: Chironomidae). Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2): 723-749, DOI: 10.1515/aemnp-2017-0097, URL: http://dx.doi.org/10.1515/aemnp-2017-0097
039435190B53C86FFE33FB7FFC8C5F03.taxon	discussion	Comments. The male fits well with the species description of D. cinerella. At this time, it is impossible to confirm species identity of the female. SERRA- TOSIO (1971: 222) described a female from a copula with a male, and WILLASSEN & SERRA- TOSIO (1988: 92) even described the female lectotype. Despite these descriptions the females within the D. cinerella group cannot be separated at present.	en	Magoga, Giulia, Montagna, Matteo, Marziali, Laura, Rossaro, Bruno, Disaa (2017): Revision of type and non-type material assigned to the genus Orthocladius by Goetghebuer (1940 - 1950), deposited in the Royal Belgian Institute of Natural Sciences (Diptera: Chironomidae). Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2): 723-749, DOI: 10.1515/aemnp-2017-0097, URL: http://dx.doi.org/10.1515/aemnp-2017-0097
039435190B52C86EFE6EFF62FEFD5B75.taxon	materials_examined	Material examined. Syndiamesa alpina: LECTOTYPE: ♁ (slide), labelled: ‘ Syndiamesa alpina n. sp. // Tyrol 12. VIII. 1939 Janets check // = Diamesa vaillanti S. T., E. Willassen rev. 1986 // R. I. SC. N. B. 18.073 / Coll. et det. M. Goetghebuer’. PARALECTOTYPE: ♁ (slide), same locality, labelled ‘ = Diamesa zernyi, E. Willassen rev. 86 // R. I. SC. N. B. 18.073 / Coll. et det. M. Goetghebuer’.	en	Magoga, Giulia, Montagna, Matteo, Marziali, Laura, Rossaro, Bruno, Disaa (2017): Revision of type and non-type material assigned to the genus Orthocladius by Goetghebuer (1940 - 1950), deposited in the Royal Belgian Institute of Natural Sciences (Diptera: Chironomidae). Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2): 723-749, DOI: 10.1515/aemnp-2017-0097, URL: http://dx.doi.org/10.1515/aemnp-2017-0097
039435190B52C86EFE6EFF62FEFD5B75.taxon	discussion	Comments. The lectotype can be confirmed to belong to D. vaillanti, the paralectotype was identified as D. zernyi by Willassen, but the length × width ratio of the gonocoxite (399 × 124 ‒ 175) suggests that it belongs to D. vaillanti. The high range width of gonocoxite observed in the paralectotype may be attributed to a different compression and orientation of the right and left gonocoxites; nevertheless, they fall within the range of D. vaillanti, the lectotype gonocoxite length × width ratio = 398 × 140, well in the range of D. vaillanti.	en	Magoga, Giulia, Montagna, Matteo, Marziali, Laura, Rossaro, Bruno, Disaa (2017): Revision of type and non-type material assigned to the genus Orthocladius by Goetghebuer (1940 - 1950), deposited in the Royal Belgian Institute of Natural Sciences (Diptera: Chironomidae). Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2): 723-749, DOI: 10.1515/aemnp-2017-0097, URL: http://dx.doi.org/10.1515/aemnp-2017-0097
039435190B52C86EFE6FFBEBFE675C16.taxon	materials_examined	Material examined. 1 pinned ♁, now mounted on slide, labelled: ‘ Diamesa notata Styria Strobl. // ♁ // Collection E. CANDELE’.	en	Magoga, Giulia, Montagna, Matteo, Marziali, Laura, Rossaro, Bruno, Disaa (2017): Revision of type and non-type material assigned to the genus Orthocladius by Goetghebuer (1940 - 1950), deposited in the Royal Belgian Institute of Natural Sciences (Diptera: Chironomidae). Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2): 723-749, DOI: 10.1515/aemnp-2017-0097, URL: http://dx.doi.org/10.1515/aemnp-2017-0097
039435190B52C86EFE6FFBEBFE675C16.taxon	discussion	Comments. We confirm that this specimen belongs to P. olivacea.	en	Magoga, Giulia, Montagna, Matteo, Marziali, Laura, Rossaro, Bruno, Disaa (2017): Revision of type and non-type material assigned to the genus Orthocladius by Goetghebuer (1940 - 1950), deposited in the Royal Belgian Institute of Natural Sciences (Diptera: Chironomidae). Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2): 723-749, DOI: 10.1515/aemnp-2017-0097, URL: http://dx.doi.org/10.1515/aemnp-2017-0097
039435190B52C86EFE70FD1EF9645AF8.taxon	materials_examined	Material examined. 2 pinned ♁♁, now mounted on the same slide, labelled: ‘ Synd. macronyx K. // Gastein 13. VII. 1907 // coll. Holdenberg // R. I. SC. N. B. 18.073 / Coll. et det. M. Goetghebuer’.	en	Magoga, Giulia, Montagna, Matteo, Marziali, Laura, Rossaro, Bruno, Disaa (2017): Revision of type and non-type material assigned to the genus Orthocladius by Goetghebuer (1940 - 1950), deposited in the Royal Belgian Institute of Natural Sciences (Diptera: Chironomidae). Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2): 723-749, DOI: 10.1515/aemnp-2017-0097, URL: http://dx.doi.org/10.1515/aemnp-2017-0097
039435190B52C86EFE70FD1EF9645AF8.taxon	discussion	Comments. Examination of the hypopygium indicates that both specimens belong to S. edwardsi, characterized by a tubercle-like expansion on the gonostylus. Syndiamesa macronyx Kieffer, 1918 from the type locality ‘ Italien Alpen, Mont Cenis’ (KIEFFER 1918), assigned to the genus Onychodiamesa Pagast, 1947 by PAGAST (1947) and currently treated as a valid species in Diamesa, clearly is a different species (see PAGAST 1947: Figs 17 ‒ 18). It is concluded that Goetghebuer’s identification of the RBINS specimen as ‘ Synd. macronyx ’ is incorrect.	en	Magoga, Giulia, Montagna, Matteo, Marziali, Laura, Rossaro, Bruno, Disaa (2017): Revision of type and non-type material assigned to the genus Orthocladius by Goetghebuer (1940 - 1950), deposited in the Royal Belgian Institute of Natural Sciences (Diptera: Chironomidae). Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2): 723-749, DOI: 10.1515/aemnp-2017-0097, URL: http://dx.doi.org/10.1515/aemnp-2017-0097
039435190B52C861FE4EFAC1FEDB5A83.taxon	materials_examined	Material examined. 1 ♁ in isinglass, now mounted on slide, labelled: ‘ Clunio marinus Holm. // Knocke (br-lames) 26. VI. 1938 ’; 1 ♁ in isinglass, now mounted on slide, labelled: ‘ marinus H. // Leysele 22. V. 1934 // R. I. SC. N. B. 18.073 / Coll. et det. M. Goetghebuer’.	en	Magoga, Giulia, Montagna, Matteo, Marziali, Laura, Rossaro, Bruno, Disaa (2017): Revision of type and non-type material assigned to the genus Orthocladius by Goetghebuer (1940 - 1950), deposited in the Royal Belgian Institute of Natural Sciences (Diptera: Chironomidae). Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2): 723-749, DOI: 10.1515/aemnp-2017-0097, URL: http://dx.doi.org/10.1515/aemnp-2017-0097
039435190B52C861FE4EFAC1FEDB5A83.taxon	discussion	Comments. The male from Knocke has well preserved genitalia and legs, but not wings; it can be assigned to the genus, but the species cannot be confirmed. The specimen from Leysele is surely not a Clunio Haliday, 1855; only antennae, parts of thorax with a leg and abdomen without hypopygium are preserved and cannot be identified to species.	en	Magoga, Giulia, Montagna, Matteo, Marziali, Laura, Rossaro, Bruno, Disaa (2017): Revision of type and non-type material assigned to the genus Orthocladius by Goetghebuer (1940 - 1950), deposited in the Royal Belgian Institute of Natural Sciences (Diptera: Chironomidae). Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2): 723-749, DOI: 10.1515/aemnp-2017-0097, URL: http://dx.doi.org/10.1515/aemnp-2017-0097
039435190B5DC861FEBFFC04F9345C17.taxon	materials_examined	Material examined. Trichocladius dentifer: LECTOTYPE: ♁ (slide) labelled: ‘ Trichocladius dentifer n sp // Röserenbach Geijskes // Type ♁ / M. Goetghebuer // alpestris Goetgh. det. M. Hirvenoja // Holotypus reconnu par M. Hirvenoja 1968 ’. PARALECTOTYPE: ♀ (slide) labelled: ‘ TRICHOCLADIUS dentifer Gtgh. // R. I. Sc. N. B. 18.073 / Coll. et det. M. Goetghebuer // Allolectotypus reconnu par M. Hirvenoja 1968 ’.	en	Magoga, Giulia, Montagna, Matteo, Marziali, Laura, Rossaro, Bruno, Disaa (2017): Revision of type and non-type material assigned to the genus Orthocladius by Goetghebuer (1940 - 1950), deposited in the Royal Belgian Institute of Natural Sciences (Diptera: Chironomidae). Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2): 723-749, DOI: 10.1515/aemnp-2017-0097, URL: http://dx.doi.org/10.1515/aemnp-2017-0097
039435190B5DC861FEBFFC04F9345C17.taxon	discussion	Comments. HIRVENOJA (1973: 89) identified one female from the type series of T. dentifer as Cricotopus curtus Hirvenoja, 1973, and one male and two females as Paratrichocladius rufi- ventris, designating the male as lectotypus (labelled Holotypus) and one female as paralectotypus (labelled Allolectotypus). The slides were reexamined and the synonymy is confirmed.	en	Magoga, Giulia, Montagna, Matteo, Marziali, Laura, Rossaro, Bruno, Disaa (2017): Revision of type and non-type material assigned to the genus Orthocladius by Goetghebuer (1940 - 1950), deposited in the Royal Belgian Institute of Natural Sciences (Diptera: Chironomidae). Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2): 723-749, DOI: 10.1515/aemnp-2017-0097, URL: http://dx.doi.org/10.1515/aemnp-2017-0097
039435190B5DC861FE5FFAF0FF4D5F1B.taxon	materials_examined	Material examined. 1 pinned ♁ now mounted on slide, labelled: ‘ Camptocladius nudipennis, Coll. et det. Goetgh. M. Goetghebuer // Gand, 31. III. 1914 ’.	en	Magoga, Giulia, Montagna, Matteo, Marziali, Laura, Rossaro, Bruno, Disaa (2017): Revision of type and non-type material assigned to the genus Orthocladius by Goetghebuer (1940 - 1950), deposited in the Royal Belgian Institute of Natural Sciences (Diptera: Chironomidae). Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2): 723-749, DOI: 10.1515/aemnp-2017-0097, URL: http://dx.doi.org/10.1515/aemnp-2017-0097
039435190B5DC861FE5FFAF0FF4D5F1B.taxon	discussion	Comments. The hypopygium is lacking so the specimen cannot be confirmed to be S. nudipennis even if it cannot be excluded.	en	Magoga, Giulia, Montagna, Matteo, Marziali, Laura, Rossaro, Bruno, Disaa (2017): Revision of type and non-type material assigned to the genus Orthocladius by Goetghebuer (1940 - 1950), deposited in the Royal Belgian Institute of Natural Sciences (Diptera: Chironomidae). Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 57 (2): 723-749, DOI: 10.1515/aemnp-2017-0097, URL: http://dx.doi.org/10.1515/aemnp-2017-0097
