Pselaphodes coxatus, Huang, Meng-Chi & Yin, Zi-Wei, 2019

Huang, Meng-Chi & Yin, Zi-Wei, 2019, The Pselaphodes (Coleoptera: Staphylinidae: Pselaphinae) of Nepal, Revue suisse de Zoologie 126 (2), pp. 165-196 : 173-174

publication ID	https://doi.org/ 10.5281/zenodo.3463445
DOI	https://doi.org/10.5281/zenodo.3706089
persistent identifier	https://treatment.plazi.org/id/0393879E-FF9B-4B7F-66C9-FD9219289401
treatment provided by	Carolina
scientific name	Pselaphodes coxatus
status	sp. nov.

Treatment

Pselaphodes coxatus View in CoL sp. nov.

Figs 7A View Fig 7 , 8 View Fig 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 View Fig 7 ). 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 View Fig 8 ) 9-11 forming distinct club, antennomeres 9 with disc-shaped process at apex, antennomeres 10 with distinct projection at base. Pronotum ( Fig. 8B View Fig 8 ) 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 View Fig 8 ) long, apically broadened. Protrochanters with slender ventral spine, profemora with small ventral spine ( Fig. 8D View Fig 8 ), protibiae ( Fig. 8E View Fig 8 ) with blunt projection at apex; mesotrochanters ( Fig. 8F View Fig 8 ) with long acute ventral spine, mesotibiae ( Fig. 8G View Fig 8 ) with small projection at apex; metacoxae ( Fig. 8H View Fig 8 ) 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 View Fig 8 . Length of aedeagus ( Figs 8 View Fig 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.