Pselaphodes symmetricus, 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 : 191

publication ID	https://doi.org/ 10.5281/zenodo.3463445
DOI	https://doi.org/10.5281/zenodo.3706071
persistent identifier	https://treatment.plazi.org/id/0393879E-FF89-4B6C-640C-FAA01FCC92BC
treatment provided by	Carolina
scientific name	Pselaphodes symmetricus
status	sp. nov.

Treatment

Pselaphodes symmetricus View in CoL sp. nov.

Figs 19B View Fig 19 , 21 View Fig 21 A-L

Type material (3 specimens): Holotype; MHNG- ENTO-44079; ♂; NEPAL, ‘ NEPAL: distr. Kathmandu: Phulcoki , 2500 m, 30.IV.84, Löbl - Smetana’ . – Paratypes; MHNG-ENTO-44080; 1 ♀; NEPAL, same label data as holotype . – MHNG-ENTO-44081; 1 ♂; NEPAL, ‘ NEPAL (Prov. Bagmati), Gul Bhanjyang , 2600 m, 6.IV.81, Löbl & Smetana’ (both paratypes in MHNG) .

Type locality: Nepal, Kathmandu District, Phulchoki Hill, 2500 m alt.

Diagnosis of males: Length 3.01-3.15 mm. Antennomeres 9 slightly concave on mesal surface, antennomeres 10 with large projection at base. Metaventral processes moderately long, with pair of small triangular projection in addition to elongate processes. Protrochanters with slender ventral spine, profemora with blunt ventral spine, protibiae with large spine at apex; mesotrochanters with acute ventral spine, mesotibiae with small projection at apex. Median lobe of aedeagus symmetric, narrowed at apex; parameres short and symmetric.

Description: Male ( Fig. 19B View Fig 19 ). Body reddish brown, BL 3.01-3.15 mm. Head longer than wide, HL 0.62- 0.65 mm, HW 0.55-0.59 mm; each eye composed of about 40 facets. Antennomeres ( Fig. 21A View Fig 21 ) 9-11 forming distinct club, antennomeres 10 with large projection at base. Pronotum ( Fig. 21B View Fig 21 ) longer than wide, PL 0.61- 0.64 mm, PW 0.56-0.61 mm, rounded at anterolateral margins, strongly constricted at apical third. Elytra wider than long, EL 0.82-0.87 mm, EW 1.14-1.22 mm. Metaventral processes ( Fig. 21C View Fig 21 ) moderately elongate, with pair of small triangular projection in addition to long processes. Protrochanters with slender ventral spine, profemora with blunt ventral spine ( Fig. 21D View Fig 21 ), protibiae ( Fig. 21E View Fig 21 ) with distinct spine at apex; mesotrochanters with acute ventral spine ( Fig. 21F View Fig 21 ); mesotibiae with small projection at apex ( Fig. 21G View Fig 21 ); metatrochanters and metafemora ( Fig. 21H View Fig 21 ) simple. Abdomen broad at base and narrowing apically, AL 0.96-0.99 mm, AW 1.23-1.31 mm. Sternite IX semimembranous, shape as in Fig. 21I View Fig 21 . Length of aedeagus ( Figs 21 View Fig 21 J-L) 0.59 mm; median lobe symmetric and stout, apex abruptly narrowed; parameres short, almost symmetric; endophallus composed of one long and one short sclerites.

Female. Each eye composed of about 22 facets; antennae simple. Measurements: BL 2.92 mm, HL 0.59 mm, HW 0.56 mm, PL 0.67 mm, PW 0.64 mm, EL 0.70 mm, EW 1.37 mm, AL 0.96 mm, AW 1.44 mm.

Distribution: Nepal, Bagmati.

Comparative notes: The new species is a member of the P. bagmatius species-group, and can be readily separated from all other congeners based on the more elongate antennomeres and elytra, the large basal projection of antennomeres 10 of the male, and the stout and symmetric median lobe of the aedeagus.

Etymology: The specific epithet refers to the symmetric form of the aedeagus of the new species.