Pselaphodes tmesisternus, 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 : 191-194

publication ID	https://doi.org/ 10.5281/zenodo.3463445
DOI	https://doi.org/10.5281/zenodo.3706069
persistent identifier	https://treatment.plazi.org/id/0393879E-FF89-4B6B-66B3-FA7D1A1B961F
treatment provided by	Carolina
scientific name	Pselaphodes tmesisternus
status	sp. nov.

Treatment

Pselaphodes tmesisternus View in CoL sp. nov.

Figs 22A View Fig 22 , 23 View Fig 23 A-K

Type material (8 specimens): Holotype; MHNG- ENTO-44082; ♂; NEPAL, ‘E. NEPAL: KOSI Forêt S. Mangsingma, 2200-2600 m, 11-13.IV.1984, Löbl - Smetana’ ( MHNG) . – Paratypes; MHNG-ENTO-44083 to 44086;2 ♂♂, 2 ♀♀; NEPAL, same label data as holotype . – MHNG-ENTO-44087; 1 ♂; NEPAL, same label data as holotype, except ‘ 2300 m, 13.IV.84’. – MHNG-ENTO-44088 & 44089; 1 ♂, 1 ♀; NEPAL, ‘E. NEPAL: KOSI Col N-E Mangmaya , 2300 m, 6.IV.84, Löbl - Smetana’ (all paratypes in MHNG) .

Type locality: Nepal, Khandbari District , forest south of Mangsingma, 2200 -2600 m alt.

Diagnosis of males: Length 2.93-3.01 mm; antennomeres 9 with disc-shaped process at apex, antennomeres

10 strongly constricted at apex and slightly constricted at base, antennomeres 10 slightly constricted at base; metaventral processes long; profemora with large blunt ventral spine, protibiae with small spine at apex; mesotrochanters with three ventral spines. Median lobe of aedeagus broad at apex, asymmetric; parameres short, broadened apically.

Description: Male ( Fig. 22A View Fig 22 ). Body reddish brown,

BL 2.93-3.01 mm. Head as long as wide, HL 0.59- 0.60 mm, HW 0.59-0.60 mm; each eye composed of about 30 facets; with well-developed ocular canthus. Antennomeres ( Fig. 23A View Fig 23 ) 9-11 forming distinct club, antennomeres 9 with disc-shaped process at apex, antennomeres 10 oblique, strongly constricted at apex and slightly constricted at base, antennomeres 11 constricted at base. Pronotum ( Fig. 23B View Fig 23 ) about as long as wide, PL 0.67-0.69 mm, PW 0.66-0.67 mm, roundly angulate at anterolateral margins, strongly constricted at apical third. Elytra wider than long, EL 0.70- 0.71 mm, EW 1.20-1.22 mm. Metaventral processes ( Fig. 23C View Fig 23 ) long, narrowing apically. Protrochanters with small spine, profemora with large blunt ventral spine ( Fig. 23D View Fig 23 ), protibiae ( Fig. 23E View Fig 23 ) with small spine at apex; mesotrochanters ( Fig. 23F View Fig 23 ) with three ventral spines; metatrochanters and metafemora ( Fig. 23G View Fig 23 ) simple. Abdomen broad at base and narrowing apically, AL 0.96-1.02 mm, AW 1.34-1.38 mm. Sternite IX semimembranous, composed of three sclerites, shape as in Fig. 23H View Fig 23 . Length of aedeagus ( Figs 23 View Fig 23 I-K) 0.70 mm; median lobe broad and asymmetric; parameres short and broad apically, endophallus composed of two one long and one short sclerites.

Female. Each eye composed of about 25 facets; antennae simple. Measurements: BL 2.98-3.30 mm, HL 0.63- 0.76 mm, HW 0.58-0.66 mm, PL 0.63-0.72 mm, PW 0.66-0.74 mm, EL 0.66-0.82 mm, EW 1.18-1.29 mm, AL 1.00- 1.06 mm, AW 1.43-1.50 mm.

Distribution: Nepal, Koshi.

Comparative notes: The new species belongs to the P. bagmatius species-group, and can be readily separated from all other congeners based on the unique form of the male antennal clubs, the divided male sternite IX, and the configuration of the aedeagus.

Etymology: The specific epithet refers to the divided male sternite IX of the new species.

New records