Nazeris qilinshanensis Guo, Liu & Sun, 2023

Sun, Wanwan, Jiang, Feiyan, Guo, Jingjing, Zhang, Tianxin & Liu, Zhiping, 2023, A New Species of Nazeris Fauvel from Guangdong, China (Coleoptera, Staphylinidae, Paederinae), Zootaxa 5323 (3), pp. 418-422 : 419-420

Nazeris qilinshanensis Guo, Liu & Sun sp. nov.

( Fig. 1 : A–F)

Type material. Holotype: male: “ China: Guangdong Prov., Zhaoqing City, Fengkai County, Qilin Shan (ḄØ ψ), 800m, VI.8.2019, leg. Shan Zhang, in SWU . Paratypes (6): same data as holotype, 1 male and 5 females, in SWU .

Description. Body length (from apex of the labrum to the apex of the abdomen) 4.8–5.0 mm; forebody length (combined length of head, pronotum and elytra) 2.4–2.5 mm.

Body ( Fig. 1A–B ) chestnut brown; abdomen after sternite VII dark brown; elytra yellowish brown and legs pale yellow.

Head ( Fig. 1A ) about 1.21 times as long as width; punctation moderately dense and coarse, obviously umbilical, interstices lacking microsculpture; postocular portion about 1.51 times of eye length. 3 thick short spines on the top of the middle two teeth of labrum.

Pronotum ( Fig. 1A ) oval, 1.15 times as long as wide, approximately as long and 0.92 times as broad as head, punctation moderately dense and larger than that of head; midline posteriorly with short and very narrow impunctate elevation, interstices lacking microsculpture; scutellum subtriangular.

Elytra ( Fig. 1A ) 0.96 times as long as wide, 0.80 times as long and 0.98 times as broad as pronotum; punctation slightly denser and slightly less coarse than that of pronotum; interstices lacking microsculpture.

Abdomen ( Fig. 1A ) with punctation dense and relatively coarse on tergites III–Ⅴ, dense and less coarse on tergite VI, moderately dense and slightly fine on tergites VII–VIII; interstices lacking microsculpture.

Male. Sternite VII ( Fig. 1C ) with posterior margin shallowly concave in middle; sternite VIII ( Fig. 1D ) with V-shaped posterior excision. Aedeagus ( Fig. 1E–F ) weakly sclerotized; ventral process in ventral view linguiform, gradually narrowing in basal third to apex and apex shortly split in the middle, and curved obliqued ventrally in lateral view; dorso-lateral apophysis slender and longer than ventral process, apex curved inward with a hook shape in ventral view and curved dorsally in lateral view.

Distribution and habitat. The species is known only from Zhaoqing City in Guangdong. The specimens were collected by sifting leaf litter at an altitude of 800 m.

Etymology. The specific name is derived from the name of the type locality, Qilin Shan.

Figures

FIGURE 1. Nazeris qilinshanensis sp. nov. A. Habitus in dorsal view; B. Habitus in ventral view; C. Sternite VII; D. Sternite VIII; E. Aedeagus in lateral view; F. Aedeagus in ventral view. Scale bars = 1mm (A–B), 0.1mm (C–F).