Pselaphodes fansipanensis Bekchiev & Yin

Bekchiev, Rostislav, Yin, Zi-Wei, Quang Vu, Manh, Tra, My Ha & Nguyen, Hanh Hoang, 2019, Description of a new Pselaphodes Westwood (Coleoptera: Staphylinidae: Pselaphinae) from Vietnam, Biodiversity Data Journal 7, pp. 46327-46327 : 46327

Pselaphodes fansipanensis Bekchiev & Yin sp. n.

Materials

Type status: Holotype. Occurrence: recordedBy: R. Bekchiev, N. Simov, I. Dedov, P. Beron; individualCount: 1; sex: male; lifeStage: adult; Taxon: scientificNameID: Pselaphodesfansipanensis; higherClassification: Coleoptera; Staphylinidae; Pselaphinae; class: Insecta; order: Coleoptera; family: Staphylinidae; genus: Pselaphodes; specificEpithet: fansipanensis; taxonRank: species; Location: locationID: Fansipan peak; higherGeographyID: Lao Cai Province; higherGeography: Vietnam; continent: Asia; verbatimElevation: 2992 m; verbatimLatitude: 22.30560; verbatimLongitude: 103.77625; decimalLatitude: 22.30560; decimalLongitude: 103.77625; Identification: identifiedBy: Rostislav Bekchiev, Zi-Wei Yin; dateIdentified: 2019; Record Level: institutionID: National Museum of Natural History-Sofia; institutionCode: NMNHS

Description

Male ( Fig. 2 ). Body reddish-brown, covered with short golden setae, BL 3.14 mm. Head slightly longer than wide, HL 0.62 mm, HW 0.56 mm; each eye composed of about 40 facets.

Antennomeres ( Fig. 3 a) 9-11 forming distinct club, antennomere 9 modified, with disc-shaped process at apex, antennomere 10 with thin, elongate protuberance at base. Pronotum as long as wide, PL 0.62 mm, PW 0.63 mm, coarsely punctate and regularly pubescent, with lateral margins rounded at apical third and then narrowing apicad. Elytra wider than long, EL 0.78 mm, EW 1.18 mm. Metaventral processes short, triangular, curved ventrally at apices in lateral view. Protrochanter with one thin projection, profemur ( Fig. 3 b) with one large, bluntly triangular ventral projection; protibia simple; mesotrochanter with two ventral spines, one minute and one larger, one minute and one distinct ventral spines ( Fig. 3 c); mesofemur and mesotibia simple; hind legs simple. Abdomen broad at base and narrowed apically, with large hump at middle of tergite IV; AL 1.12 mm, AW 1.24 mm.

Length of aedeagus 0.77 mm, median lobe broad and asymmetrical, parameres elongate, endophallus with one elongate sclerite ( Fig. 3 d, e); the apical part of the median lobe was broken and lost during the preparation of the specimen.

Female. Unknown.

Etymology

The new species is named after Fansipan Summit, the type locality of the new species.

Distribution

North Vietnam: Lao Cai Province.

Taxon discussion

The new species can be readily separated from all other members of the genus by the unique modification of the antennomeres 9-10 and the short, triangular metaventral processes of the male, as well as the shape of the aedeagus.

Figures

Figure 2. Pselaphodes fansipanensis sp. n. - habitus. Scale bar: 1.0 mm.

Figure 3. Pselaphodes fansipanensis sp. n. - a) antennal club; b) protrochanter and profemur; c) mesotrochanter; d, e) aedeagus - dorsal and lateral view. Scale bar: 0.2 mm.