Pselaphodes robustus, 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 : 183-185

publication ID	https://doi.org/ 10.5281/zenodo.3463445
DOI	https://doi.org/10.5281/zenodo.3706061
persistent identifier	https://treatment.plazi.org/id/0393879E-FF81-4B62-66CE-FE871E45963F
treatment provided by	Carolina
scientific name	Pselaphodes robustus
status	sp. nov.

Treatment

Pselaphodes robustus View in CoL sp. nov.

Figs 13B View Fig 13 , 15 View Fig 15 A-K

Type material (32 specimens): Holotype; MHNG- ENTO-44031; ♂; NEPAL, ‘ NEPAL: distr. Kathmandu: Phulcoki, 2400 -2600 m, 28-30.IV.84, Löbl - Smetana’ ( MHNG) . – Paratypes; MHNG-ENTO-44032 to 44036; 2 ♂♂, 3 ♀♀; NEPAL, same label data as holotype . – MHNG-ENTO-44037 to 44047; 5 ♂♂, 6 ♀♀; NEPAL, same label data as holotype, except ‘ 2500 m, 28-29. IV.84’. – MHNG-ENTO-44048 & 44049; 1 ♂, 1 ♀; NEPAL, ‘ NEPAL, Lalitpur Distr. , Phulcoki, 2600 m, 14.X.83, Smetana & Löbl’ . – MHNG-ENTO-44050 to 44054; 3 ♂♂, 2 ♀♀; NEPAL, ‘ NEPAL, Lalitpur Distr. , Phulcoki, 2650 m, 13.X.83, Smetana & Löbl’. – MHNG-ENTO-44055 to 44056; 2 ♂♂; NEPAL, ‘ NEPAL, Lalitpur Distr. , Phulcoki, 2550 m, 15.X.83, Smetana & Löbl’ . – MHNG-ENTO-44057; 1 ♂; NEPAL, ‘ NEPAL, Lalitpur Distr. , Phulcoki, 2700 m, 16.X.83, Smetana & Löbl’ . – MHNG-ENTO-44058; 1 ♂; NEPAL, ‘ NEPAL (Prov. Bagmati), Phulchauki nr., Kathmandu, 2500 m, 10. V.81, l. Löbl’ . – MHNG- ENTO-44059 to 44062; 2 ♂♂, 2 ♀♀; NEPAL, ‘ NEPAL, Kathmandu District , Phulcoki, 2550 m, 21.IV.1982, A. & Z. Smetana’ (all paratypes in MHNG) .

Type locality: Nepal, Kathmandu District , Phulchoki Hill, 2400 -2600 m alt.

Diagnosis of males: Length 3.37-3.43 mm. Antennomeres 9 with disc-shaped process at apex. Metaventral processes short and broad. Protrochanters with small ventral spine, profemora with bluntly triangular projection, protibiae with small projection at apex; mesotrochanter with sharp ventral spine. Median lobe of aedeagus strongly asymmetric at apex; parameres elongate and broadened throughout entire length.

Description: Male ( Fig. 13B View Fig 13 ). Body reddish brown, BL 3.37-3.43 mm. Head longer than wide, HL 0.71- 0.74 mm, HW 0.63-0.65 mm; each eye composed of about 32 facets; with well-developed ocular canthus. Antennomeres 9-11 ( Fig. 15A View Fig 15 ) forming distinct club, antennomeres 9 slightly modified, with disc-shaped process at apex, antennomeres 10 simple. Pronotum ( Fig. 15B View Fig 15 ) longer than wide, PL 0.71-0.76 mm, PW 0.66-0.68 mm, angularly expanded at anterolateral margins, strongly constricted at apical third. Elytra wider than long, EL 0.88-0.89 mm, EW 1.34-1.41 mm. Metaventral processes ( Fig. 15C View Fig 15 ) short and broad, apically rounded. Protrochanters with small ventral spine, profemora with bluntly triangular ventral projection ( Fig. 15D View Fig 15 ), protibiae ( Fig. 15E View Fig 15 ) with small projection at apex; mesotrochanters ( Fig. 15F View Fig 15 ) with sharp triangular ventral spine; metatrochanters and metafemora ( Fig. 15G View Fig 15 ) simple. Abdomen broad at base and narrowing apically, AL 1.03-1.06 mm, AW 1.46-1.49 mm. Sternite IX semi-membranous, shape as in Fig. 15H View Fig 15 . Length of aedeagus ( Figs 15 View Fig 15 I-K) 0.75 mm; median lobe broad and strongly asymmetric; parameres moderately broadened throughout entire length; endophallus composed of one long and one short sclerites.

Female. Each eye composed of about 30 facets; antennae simple. Measurements: BL 3.21-3.64 mm, HL 0.63- 0.74 mm, HW 0.62-0.68 mm, PL 0.69-0.73 mm, PW 0.67-0.69 mm, EL 0.82-0.88 mm, EW 1.20-1.46 mm, AL 1.00- 1.29 mm, AW 1.44-1.57 mm.

Distribution: Nepal, Bagmati.

Comparative notes: The new species belongs to the P. bagmatius species-group, but has less modified antennal clubs. It can be readily separated from all other members of the group based on the elongate antennomeres, the short metaventral processes, and the apically strongly asymmetric median of the aedeagus.

Etymology: The specific epithet refers to the short and broad male metaventral processes of the new species.