Tomocerus ( Tomocerus ) minor ( Lubbock, 1862 )

Mandal, Guru Pada, Kumari, Simran, Mandal, Pritha, Roy, Koushik Kumar, Suman, Kusumendra Kumar & Bhattacharya, Kaushik Kumar, 2024, Description of a new species with three new records of Tomocerus Nicolet (Collembola: Tomoceridae) from India, Journal of Insect Biodiversity and Systematics 10 (4), pp. 755-768 : 760-761

publication ID	https://doi.org/10.61186/jibs.10.4.755
publication LSID	lsid:zoobank.org:pub:24F10E07-2A09-4C49-A97D-52EEAC32B44C
DOI	https://doi.org/10.5281/zenodo.17028635
persistent identifier	https://treatment.plazi.org/id/03CA87C3-FF93-B01A-FFC9-F9E3FB142C28
treatment provided by	Felipe
scientific name	Tomocerus ( Tomocerus ) minor ( Lubbock, 1862 )
status

Treatment

Tomocerus ( Tomocerus) minor ( Lubbock, 1862) View in CoL ( Fig. 6A–D)

Material examined. 2 specimens, INDIA, West Bengal, Darjeeling district, Singalila National park, 1 km North-East from Gairibas WB Govt. Rest House, 27°03'04.54''N, 88°01'59.91E '', 2577 m a.s.l., 28.ii.2021, K. K. Suman leg., Reg no.– 3056/H14 GoogleMaps .

Description. Ground colour of body pale yellow with antennal joining pigmented and gradually darken from Ant. III–Ant. IV. Purple patches extended on lateral side of Th. II–Abd. II, coxa and femur of foreleg sometimes with dark purple patch ( Fig. 6A). Ant. I: II: III ratio as 1: 1.9: 7.6, Ant. IV missing. Antenna: head diagonal ratio 3.18: 1. Ocelli 6+6 dark purple coloured, PAO absent. Prelabral chaetae 4, labral chaetae formula 5, 5, 4; all smooth. Md. with four apical and seven basal teeth. Labial palp with four chaetae, apex of lateral process not reaching the base. Brown-coloured scales present on all over the body. Trochanteral-femoral organ with 1, 1 chaeta. Strong chaetae formula of fore to hind tita as 6, 6, 7. Tenet hair clavate, small accessory chaetae, and guard chaetae almost equal lengths of tenent hair.

Unguis slender with distinct basal paired, 6 distal pointed inner and paired lateral teeth present. Unguiculus lanceolate with one-minute inner tooth ( Fig. 6B). Corpus of tenaculum with 11 chaetae and rami with 4 teeth, scales absent. Ratio of manubrium: dens: mucro 10.7: 14: 1. Manubrium laterally with large round scales, 1–2 large chaetae on proximal side and 9 spinous chaetae. Dorsal dental basal part with a prominent pointed dorsal chaetae and simple and plumose chaetae. 12 tridentate dental spines arranged as 5/3–4, I, 1–2, I ( Fig. 6C). Mucro with paired basal tooth with toothlet, outer lamella with 6 intermediate teeth and small apical and subapical teeth ( Fig. 6D).

Differential diagnosis. Tomocerus minor is characterised by tridentate denticles of dental spine arranged in a single row with two large distal spines with 1–2 intermediate small spines.

Habitat and distribution. Found under moss vegetation surrounding leaf litter on the way to Gairibas Hill Stream, Singalila National Park, India. The species is common in all parts of Europe.