Pselaphodes sagephorus, 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 : 187-189

publication ID	https://doi.org/ 10.5281/zenodo.3463445
DOI	https://doi.org/10.5281/zenodo.3706065
persistent identifier	https://treatment.plazi.org/id/0393879E-FF85-4B6E-6416-FA1319959638
treatment provided by	Carolina
scientific name	Pselaphodes sagephorus
status	sp. nov.

Treatment

Pselaphodes sagephorus View in CoL sp. nov.

Figs 16B View Fig 16 , 18 View Fig 18 A-K

Type material (10 specimens): Holotype; MHNG- ENTO-44068; ♂; NEPAL, ‘ NEPAL: distr. Kathmandu: Phulcoki , 2500 m, 28-29.IV.84, Löbl - Smetana’ ( MHNG) . – Paratypes; MHNG-ENTO-44069 & 44070; 1 ♂, 1 ♀; NEAPL, same label data as holotype . – MHNG-ENTO-44071 to 44072; 1 ♂, 1 ♀; NEAPAL, ‘ NEPAL ( Prov. Bagmati), Pokhare NE Barahbise , 2700 m, 7. V.81, Löbl & Smetana’ . – MHNG- ENTO-44073; 1 ♂; NEPAL, ‘ NEPAL ( Prov. Bagmati), Malemchi, 2800 m, 14.IV.81, Löbl & Smetana’ . – MHNG-ENTO-44074; 1 ♂; NEPAL, ‘ NEPAL ( Prov. Bagmati), Gul Bhanjyang, 2600 m, 6.IV.81, Löbl & Smetana’ . – MHNG-ENTO-44075; 1 ♂; NEPAL, ‘ NEPAL: Bagmati, Pokhare NE Barahbise , 2800 m, 3.5.81, Löbl - Smetana’ . – MHNG-ENTO-44076; 1 ♂; NEPAL, ‘ NEPAL (Prov. Bagmati), Phulchauki nr. Kathmandu, 2500 m, 10. V.81, l. Löbl’ . – MHNG- ENTO-44077; 1 ♂; NEPAL, ‘ NEPAL, Lalitpur Distr.,

Phulcoki, 2550 m, 15.X.83, Smetana & Löbl’ (all paratypes in MHNG).

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

Diagnosis of males: Length 3.41-3.42 mm. Antennomeres 9 with distinct projection and cavity at apex and mesal margin, with tuft of gold-colored setae inside cavity, antennomeres 10 with large projection at base. Metaventral processes long, apically narrowed, with pair of small projection in addition to long processes. Protrochanters with small ventral spine, profemora with large ventral spine, protibiae with blunt projection at apex; mesotrochanters with slender ventral spine; metafemora with large ventral spine. Median lobe of aedeagus slightly asymmetric at apex; parameres broad.

Description: Male ( Fig. 16B View Fig 16 ). Body reddish brown, BL 3.41-3.42 mm. Head slightly longer than wide, HL 0.64-0.68 mm, HW 0.64-0.67 mm; each eye composed of about 45 facets; with well-developed ocular canthus. Antennomeres ( Fig. 18A View Fig 18 ) 9-11 forming distinct club, antennomeres 9 with distinct projection and cavity at apex and mesal margin, with tuft of gold-colored setae inside cavity, antennomeres 10 with large, sharp projection at base. Pronotum ( Fig. 18B View Fig 18 ) longer than wide, PL 0.72-0.74 mm, PW 0.68-0.69 mm, angularly expanded at anterolateral margins. Elytra wider than long, EL 0.84-0.95 mm, EW 1.32-1.41 mm. Metaventral processes ( Fig. 18C View Fig 18 ) long and broad, narrowed at apex, with pair of small projection in addition to long processes. Protrochanters ( Fig. 18D View Fig 18 ) with tiny spine, profemora with large ventral spine, protibiae ( Fig. 18E View Fig 18 ) with blunt projection at apex; mesotrochanters ( Fig. 18F View Fig 18 ) with long, slender ventral spine; metatrochanters simple, metafemora ( Fig. 18G View Fig 18 ) with large, sharp ventral spine. Abdomen broad at base and narrowing apically, AL 1.06-1.20 mm, AW 1.40- 1.43 mm. Sternite IX semi-membranous, shape as in Fig. 18H View Fig 18 . Length of aedeagus ( Figs 18 View Fig 18 I-K) 0.59 mm; median lobe slightly asymmetric, narrowed at apex; parameres broad dorso-ventrally; endophallus composed of one long and one short sclerites.

Female. Each eye composed of about 35 facets; antennae simple. Measurements: BL 3.34 mm, HL 0.72 mm, HW 0.63 mm, PL 0.71 mm, PW 0.67 mm, EL 0.72 mm, EW 1.29 mm, AL 1.19 mm, AW 1.49 mm.

Distribution: Nepal, Bagmati.

Comparative notes: The new species belongs to the P. bagmatius species-group, and can be readily separated from all other members of the group based on the expanded postgenae, strongly modified antennal clubs, long and broad metaventral processes, the long metafemoral spine of the male, and the unique configuration of the aedeagus.

Etymology: The specific epithet ‘ Sagephorus ’ means

‘well-armed’, referring to the strongly modified head, antennae, and legs in the male of the new species.