Cuccodorodes darjeelingensis, Yin, 2018

Yin, Zi-Wei, 2018, Cuccodorodes gen. nov., an apterous Batrisitae from the tropical Himalayas (Coleoptera: Staphylinidae: Pselaphinae), Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) 58 (2), pp. 321-330 : 326-328

Cuccodorodes darjeelingensis sp. nov.

( Figs 1 , 3 A–B, 5D, 6A–C, 7)

Type material (37 ♂♂ 32 ♀♀). HOLOTYPE: INDIA: Ƌ, ‘INDIA, W. BENGAL, Darjeeling dist., Tonglu , 3100 m, 16.x.78, Besuchet-Löbl ( MHNG). PARATYPES: INDIA: 36 ♂♂ 32 ♀♀, same label data of the holotype (6 exs in SNUC, rest in MHNG).

Description. Male. General habitus stout ( Fig. 1A ), body reddish brown, pronotum slightly darker, mouthparts and tarsomeres lighter in color, BL 3.10–3.14 mm. Head slightly wider than long, HL 0.51–0.52 mm, HW 0.55–0.57 mm; vertexal foveae located below level of posterior margin of eyes, sulcus truncate anteriorly, more or less U-shaped ( Fig. 3A ), median carina extending anteriorly from near head base to meet sulcus; eyes small, slightly protruding laterally, each eye composed of about 10 facets; AnL 1.02–1.10 mm. Pronotum wider than long, PL 0.58–0.60 mm, PW 0.71–0.72 mm; median longitudinal sulcus extending from small median antebasal fovea to near apex, discal longitudinal sulci slightly curved, lateral longitudinal sulci strongly sinuate, broadening at basal half and densely setose. Elytra much wider than long, EL 0.73–0.77 mm, EW 0.87–0.93 mm. Abdomen widest at tergite 1 (IV), AL 1.13–1.20 mm, AW 0.91–0.96 mm; sternite 1 (IV) with broad and thickened arched median projection ( Fig. 3B ), surface of projection with scaly microsculpture, area surrounded by projection narrowly triangular; median area of sternite 3 (V) with distinct microsculpture; sternite 7 (IX) with membranous basal half obliquely and lengthily elongate ( Fig. 6A ). Length of aedeagus ( Figs 6 B–C) 0.61 mm; ventral lobe broadly protruding ventrally, pointed at apex, dorsal margin with short elongate sclerite narrowing and curved apically, lacking longitudinal sclerite at left side.

Female. General habitus similar to male ( Fig. 1B ) but with shorter antennae; each eye composed of about 10 facets; mesotibia simple; most individuals bear one small to conspicuous median projection on tergites 3–4 (VI–VII), while few others totally lack such structure; sternite 2 (IV) unmodified; genital complex ( Fig. 5D ) with basolateral extensions narrowing and acute posteriorly. Measurements: BL 2.94–3.08 mm, AnL 1.07–1.10 mm, HL 0.53–0.54 mm, HW 0.58–0.59 mm, PL 0.58–0.59 mm, PW 0.68–0.69 mm, EL 0.72 mm, EW 0.86–0.87 mm, AL 1.05–1.15 mm, AW 0.88–0.91 mm.

Etymology. The new species is named after Darjeeling District, where the type locality lies; adjective.

Distribution. India: Darjeeling District ( Fig. 7 ).

Figures

Fig. 1. Dorsal habitus of Cuccodorodes darjeelingensis sp. nov. A – male; B – female.

Fig. 3. Male head and pronotum (A, C, E), and sternites 2–3 (IV–V) (B, D, F) of Cuccodorodes darjeelingensis sp. nov. (A–B), C. koshiensis sp. nov. (C–D), and C. weiperti sp. nov. (E–F).

Fig. 6. Male sternite 7 (IX) (A, D, G), and aedeagus (B–C, E–F, H–I) of Cuccodorodes darjeelingensis sp. nov. (A–C), C. koshiensis sp. nov. (D–F), and C. weiperti sp. nov. (G–I). Scale bars: 0.1 mm in A, D, G; 0.2 mm in B–C, E–F, H–I.

Fig. 5. Morphology of Cuccodorodes gen. nov., based on C. koshiensis sp. nov.unless specified otherwise.A – prothorax, in dorso-lateral view; B – meso- and metaventrite; C – internal foveal structure of tergite 1 (IV) and sternite 2 (IV); D–E – female genital complex, in dorsal view (D – C. darjeelingensis sp. nov.; E – C. koshiensis sp. nov.). Abbreviations: blf – basolateral foveae; dls – discal longitudinal sulcus; laf – lateral antebasal foveae; lls – lateral longitudinal sulcus; lmcf – lateral mesocoxal foveae; lmsf – lateral mesoventral foveae; lmtf – lateral metaventral foveae; mbf – mediobasal foveae; mls – median longitudinal sulcus; mmsf – median mesoventral foveae; mp – median projection; p – pit. Scale bars: 0.2 mm.

Fig.7. Map showing the distribution of Cuccodorodes species.