Pselaphodes rotundatus Huang & Yin, 2019, sp. nov.
Creators: name: Huang, Meng-Chi
name: Yin, Zi-Wei
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Staphylinidae
Pselaphodes
Pselaphodes rotundatus

description: Pselaphodes rotundatus sp. nov.
Figs 16A, 17 A-L
Type material (5 specimens): Holotype; MHNG- ENTO-44063; ♂; NEPAL, ‘ NEPAL (Prov. Bagmati), below Thare Pati, 3300 m, 11.IV.81, Löbl & Smetana’. – Paratypes; MHNG-ENTO-44064 to 44066; 1 ♂, 2 ♀♀; NEPAL, same label data as holotype. – MHNG- ENTO- 44067; paratype, 1 ♂; NEPAL, same label data as holotype, except ‘10.IV. 81’ (all paratypes in MHNG).
Type locality: Nepal, Sindhupalchok District, Melamchi, Thare Pati, 3300 m alt.
Diagnosis of males: Length 3.10-3.13 mm. Antennomeres 9 with large disc-shaped process at apex, antennomeres 10 with small projection at base. Metaventral processes broad, forked at apex. Profemora with triangular ventral spine, protibiae with distinct spine at apex; mesotrochanters with slender ventral spine, mesotibiae with small projection at apex; metacoxae with short ventral projection. Median lobe of aedeagus broad and asymmetric at apex; parameres short.
Description: Male (Fig. 16A). Body reddish brown, BL 3.10-3.13 mm. Head longer than wide, HL 0.61- 0.62 mm, HW 0.53-0.56 mm; each eye composed of about 43 facets. Antennomeres (Fig. 17A) 9-11 forming distinct club, antennomeres 9 with large disc-shaped process at apex, antennomeres 10 with small projection at base. Pronotum (Fig. 17B) slightly longer than wide, PL 0.61-0.62 mm, PW 0.58-0.59 mm, angularly expanded at anterolateral margins, strongly constricted at apical third. Elytra wider than long, EL 0.88- 0.94 mm, EW 1.12-1.19 mm. Metaventral processes (Fig. 17C) broad, apically forked, anterior branch shorter than posterior branch. Profemora (Fig. 17D) with triangular ventral spine, protibiae (Fig. 17E) with distinct spine at apex; mesotrochanters (Fig. 17F) with acute ventral spine; mesotibiae (Fig. 17G) with small tubercle at apex; metacoxa (Fig. 17H) with short ventral projection. Abdomen broad at base and narrowing apically, AL 0.96-0.99 mm, AW 1.12-1.14 mm. Sternite IX semi-membranous, shape as in Fig. 17I. Length of aedeagus (Figs 17 J-L) 0.65 mm; median lobe broad and asymmetric; parameres short, almost symmetric; endophallus composed of one long and one short sclerites.
Female. Each eye composed of about 35 facets; antennae simple. Measurements: BL 3.06-3.12 mm, HL 0.65- 0.67 mm, HW 0.56-0.59 mm, PL 0.61-0.62 mm, PW 0.58-0.61 mm, EL 0.79-0.81 mm, EW 1.20-1.25 mm, AL 0.97-1.06 mm, AW 1.29-1.32 mm.
Distribution: Nepal: Bagmati.
Comparative notes: The new species belongs to the P. bagmatius species-group, and can be readily separated from all other members of the group based on the relatively long elytra and forked metaventral processes of the male, as well as the unique form of the aedeagus.
Etymology: The specific epithet refers to the large discshaped process of the male antennomeres 9 of the new species.
description: Published as part of Huang, Meng-Chi & Yin, Zi-Wei, 2019, The Pselaphodes (Coleoptera: Staphylinidae: Pselaphinae) of Nepal, pp. 165-196 in Revue suisse de Zoologie 126 (2) on pages 185-187, DOI: 10.5281/zenodo.3463445