Imeria (Imeria) albomaculatoides, Riedel & C, 2025

Imeria (Imeria) albomaculatoides nov.sp. ( figs 6 View Figs 5-10 , 18 View Figs 17-22 , 36, 47)

H o l o t y p e: (♀) Laos: Prov. Hua Phan, Phon-Pan, Umg. Ort Ban Saleui, 20°13´30´´N 103°59´26´´E, 1350-1900 m, 15.vi.2013, KJa, leg. C. Holzschuh & locals (Linz).

P a r a t y p e s: S Vietnam: Dak Lak, Chu Yang Sin N.P. nr dam, 800-940 m, 2³³ 2-10.vi.2007, Mal. traps, C. v. Achterberg and R de Vries RMNH ´07 (Leiden) ; S Vietnam: Dak Lak, Chu Yang Sin N.P. Krong K`Mar, Malaise traps 840-940 m, 1³ 2-10.vi.2007, leg. C. v. Achterberg and R. de Vries RMNH ´07 ; S Vietnam: Dak Lak, Chu Yang Sin N.P., nr river, Malaise traps, c. 740 m, 1³ 1-10.vi.2007, leg. C. v. Achterberg and R. de Vries RMNH ´07 (Leiden) .

E t y m o l o g y: The species name refers to the resemblance with Imeria albomaculata .

D e s c r i p t i o n: ♀. Body length 8.2 mm. Flagellum with>25 segments (tips broken off), moderately lanceolate; 1 st flagellar segment 4.0× as long as wide; widest segments 1.7× as wide as long. Temple long, shortly parallel behind eye and slightly narrowed apically. OED 1.8× and OOD 1.0× ocellar diameter. Occiput concave medially. Temple smooth; frons with fine rather dense punctures dorso-laterally. Face with rather dense punctures, partly rugose medially. Clypeus large, flat, with sparse punctures; apical margin slightly lamelliform raised laterally and with blunt tubercle medially. Malar space 0.6× as long as width of mandibular base.

Epomia long, almost reaching ventral margin of pronotum; side of pronotum with some longitudinal rugae at posterior margin. Mesoscutum densely rugose-punctate, dull. Notaulus not impressed, its area with some oblique ridges. Epicnemial carina slightly lamelliform widened ventrally. Sternaulus impressed in frontal third of mesopleuron. Mesopleuron with striae dorsally, rugose-punctate ventrally; speculum partly smooth. Metapleuron ± striate frontally, rugose-punctate posteriorly; juxtacoxal carina largely absent. Scutellum pyramidal, slightly wider than long, with complete and moderately lamelliform lateral carina; strongly descending apical side. Postscutellum with fine longitudinal striae. Propodeum incompletely carinated and without apophysis; spiracle oval. Area basalis replaced by fine median longitudinal ridge. Area superomedia pentagonal, slightly wider than long; costula reaching its middle. Lateral carina of area petiolaris and lateral longitudinal carina of propodeum absent. Hind coxa densely punctate, without scopa or carina. Hind femur 4.5× as long as wide. Claws simple, apically strongly curved (by 90°). Areolet pentagonal; frontal distance between veins 2rs-m and 3rs-m 1× their width. Vein 1cu-a interstitial.

Metasoma rather slender, with almost parallel sides, oxypygous. Postpetiole moderately widened, with microsculpture but shining. Gastrocoelus moderately impressed, finely rugose. Thyridium large, transverse, c. 2× as wide as interval between thyridia. 2 nd tergite about as long as wide. 2 nd tergite densely punctate, punctures very superficial in apical half; following tergites ± granulate, but shining. Ovipositor sheath extending beyond metasomal apex by length of 3 rd hind tarsomere.

Color: Black. Palps reddish-yellow. Scape reddish-brown ventrally. Flagellum black, flagellar segments 6-14 ivory dorsally. Mandible except teeth, clypeus, face except brown median stripe and ventral brown transverse band, frontal orbit up to ocelli (widened dorsally), gena and outer orbit up to vertex, wide frontal and upper margins of pronotum, central spot on mesoscutum, tegula, subtegular ridge, scutellum, postscutellum, wide stripe on ventral mesopleuron, upper division of metapleuron, small spot around propodeal spiracle, confluent band of apical 2/3 of metapleuron, area petiolaris and area posteroexterna, base of petiole, small apical spot on postpetiole, wide basal bands on 2 nd and 3 rd tergites, wide apical bands on 4 th to 7 th tergites ivory. Legs mainly reddish; fore and mid coxae and all trochanters ivory; hind coxa black, with ivory dorsal spot; hind femur red, narrowly black apically; hind tibia basally black, slightly infuscate apically; distal fore and mid tarsomeres and hind tarsus blackish. Wings hyaline; pterostigma brown.

³. Body length 8.5-10.0 mm. Flagellum with 38-40 segments, bristle-shaped; 1 st flagellar segment 3.3-3.4× as long as wide. Tyloids indistinct. Head large. Temple long, shortly widened behind eye and slightly narrowed apically. OED 2.0× and OOD 1.0× ocellar diameter. Temple smooth; frons with fine very sparse punctures dorso-laterally. Face with rather dense punctures. Clypeus large, flat, with sparse punctures; apical margin with blunt tubercle medially. Malar space 0.8× as long as width of mandibular base.

Mesoscutum densely rugose-punctate, dull. Notaulus not impressed, its area with some oblique ridges. Mesopleuron and metapleuron striate; speculum smooth. Scutellum pyramidal, wider than long, with complete and lamelliform lateral carina; strongly descending apical side. Postscutellum with fine longitudinal striae. Propodeum incompletely carinated and without apophysis; spiracle oval. Area superomedia hexagonal, wider than long; costula reaching its middle. Hind femur 4.1-4.5× as long as wide. Postpetiole moderately widened, with microsculpture but shining. Gastrocoelus moderately impressed, finely rugose. Thyridium large, transverse, 1.6-1.8× as wide as interval between thyridia. 2 nd tergite about as long as wide.

Color: Black. Scape often reddish-brown ventrally. Flagellum black, flagellar segments 9/10-15/19 ivory dorsally. Mandible except teeth, clypeus, face entirely or except small brown median spot, frontal orbit up to ocelli (widened dorsally), gena and outer orbit, wide frontal and upper margins of pronotum, central spot on mesoscutum (sometimes very small), tegula, subtegular ridge, scutellum, postscutellum, wide stripe on ventral mesopleuron, upper division of metapleuron, small spot around propodeal spiracle, confluent band of apical 2/3 of metapleuron, area petiolaris and area posteroexterna, base of petiole, small apical spot on postpetiole, wide basal bands of 2 nd and 3 rd tergites, 3 rd tergite laterally, wide apical bands on 4 th to 7 th tergites, hypopygium partly and paramere ivory. Legs mainly reddish; fore and mid coxae and all trochanters ivory; hind coxa black, with ivory dorsal spot; hind femur red, narrowly black apically; hind tibia reddish-yellow, black basally and slightly infuscate apically; distal fore and mid tarsomeres and hind tarsus blackish. Wings hyaline; pterostigma brown.

R e m a r k: The Vietnamese ³³ were mentioned as I. albomaculata in a previous publication ( RIEDEL 2017) but belong to this new species.

D i s t r i b u t i o n: LaosandVietnam.