Pselaphodes coxatus 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 coxatus

description: Pselaphodes coxatus sp. nov.
Figs 7A, 8 A-L
Type material (10 specimens): Holotype; MHNG- ENTO-43982; ♂; NEPAL, ‘ NEPAL (Prov. Bagmati), Yangri Ridge, 4500 m, 23.IV.81, Löbl & Smetana’ (MHNG). – Paratypes; MHNG-ENTO-43983 to 43984; 2 ♂♂; NEPAL, same label data as holotype. – MHNG- ENTO-43985 to 43991; 2 ♂♂, 5 ♀♀; NEPAL, same label data as holotype, except ‘ 4350 m, 22.IV.81’ (all paratypes in MHNG).
Type locality: Nepal, Sindhupalchowk District, Yangri Mountain, 4500 m alt.
Diagnosis of males: Length 3.10-3.19 mm. Antennomeres 9 with disc-shaped process at apex, antennomere 10 with distinct projection at base. Metaventral processes long, apically expanded. Protrochanters with slender ventral spine, profemora with small ventral spine, protibiae with blunt projection at apex; mesotrochanters with long acute ventral spine, mesotibiae with tiny projection at apex; metacoxae with short ventral projection. Median lobe of aedeagus broad and strongly asymmetric at apex; parameres moderately broadened throughout entire length.
Description: Male (Fig. 7A). Body reddish brown, BL 3.10-3.19 mm. Head longer than wide, HL 0.62- 0.64 mm, HW 0.56-0.58 mm; each eye composed of about 26 facets; with well-developed ocular canthus. Antennomeres (Fig. 8A) 9-11 forming distinct club, antennomeres 9 with disc-shaped process at apex, antennomeres 10 with distinct projection at base. Pronotum (Fig. 8B) longer than wide, PL 0.67-0.68 mm, PW 0.64-0.65 mm, angularly expanded at anterolateral margins, strongly constricted at apical third. Elytra wider than long, EL 0.82-0.84 mm, EW 1.20-1.22 mm. Metaventral processes (Fig. 8C) long, apically broadened. Protrochanters with slender ventral spine, profemora with small ventral spine (Fig. 8D), protibiae (Fig. 8E) with blunt projection at apex; mesotrochanters (Fig. 8F) with long acute ventral spine, mesotibiae (Fig. 8G) with small projection at apex; metacoxae (Fig. 8H) with short ventral projection. Abdomen broad at base and narrowing apically, AL 0.99-1.03 mm, AW 1.29-1.32 mm. Sternite IX semi-membranous, shape as in Fig. 8I. Length of aedeagus (Figs 8 J-L) 0.66 mm; median lobe broad and strongly asymmetric at apex; parameres moderately broadened throughout entire length; endophallus composed of two long sclerites.
Female. Each eye composed of about 28 facets; antennae simple. Measurements: BL 3.13-3.19 mm, HL 0.62- 0.67 mm, HW 0.59-0.62 mm, PL 0.65-0.67 mm, PW 0.65-0.70 mm, EL 0.76-0.81 mm, EW 1.23-1.29 mm, AL 1.05-1.09 mm, AW 1.44-1.47 mm.
Distribution: Nepal, Bagmati.
Comparative notes: The new species belongs to the P. bagmatius species-group, and can be readily separated from all congeners of the group based on the roundly angulate pronotal lateral margins, the strongly broadened male profemora, and the unique forms of the male antennal clubs and aedeagus.
Etymology: The specific epithet refers to the spinose male metacoxae 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 173-174, DOI: 10.5281/zenodo.3463445