Domene (Macromene) hei Peng & Li

Peng, Zhong, Sun, Zhuo, Li, Li-Zhen & Zhao, Mei-Jun, 2015, Four new species and additional records of Domene and Lathrobium from the Dayao Mountains, southern China, ZooKeys 508, pp. 113-126 : 114-115

Taxon classification Animalia Coleoptera Staphylinidae

Domene (Macromene) hei Peng & Li sp. n. Figs 1 A–C, 2

Type material.

Holotype: ♂, labelled 'China: Guangxi Prov., Jinxiu Hsien, Shengtang Shan, 23°57'37"N, 110°06'46"E, 1300 m, 21.VII.2014, Peng, Song, Yan & Yu leg.' (SNUC). Paratypes: 2 ♀♀, same data, but ' 23°59'N, 110°06'E, 1200-1400 m, 25.VII.2011, Peng, Hu & Yin leg.' (SNUC).

Description.

Measurements (in mm) and ratios: BL 10.23-10.66, FL 5.67-5.84, HL 1.54-1.57, HW 1.44-1.51, AnL 3.56-3.67, PL 1.67-1.74, PW 1.39-1.44, EL 1.41-1.48, AL 1.07, HL/HW 1.04-1.07, HW/PW 1.04-1.06, HL/PL 0.90-0.92, PL/PW 1.20-1.22, EL/PL 0.84-0.86.

Habitus as in Fig. 1A. Body black; legs blackish brown to brown; antennae dark brown to brown.

Head (Fig. 1B) orbicular, widest behind eyes; punctation coarse, umbilicate and dense, interstices forming narrow ridges; antenna slender.

Pronotum (Fig. 1C) somewhat narrower than head, widest in the middle; lateral margins convex in dorsal view; punctation similar to that of head; midline with rudiment of a fine glossy line.

Each elytron with more or less irregular longitudinal narrowly elevated ridges; suture elevated in posterior two thirds; macropunctation coarse and partly somewhat seriate; interstices with irregular micropunctation. Hind wings reduced. Protarsomeres I–IV distinctly dilated.

Abdomen with fine and dense punctation on tergites III–VIII; posterior margin of tergite VIII weakly convex (Fig. 2A); interstices with distinct microreticulation; posterior margin of tergite VII with palisade fringe.

Male. Sternites III–VI unmodified; sternite VII (Fig. 2D) without modified pubescence, posterior margin broadly concave; sternite VIII (Fig. 2E) with narrow and shallow postero-median impression, posterior excision small, on either side of posterior excision with cluster of short dark setae; aedeagus as in Figs 2F, G; ventral process slender; dorsal plate with long sclerotized apical portion and short basal portion.

Female. Posterior margin of sternite VIII (Fig. 2B) broadly convex; genital segments (Fig. 2C) with a slender sclerotized structure.

Comparative notes.

Based on more or less irregular longitudinal elevations of elytra, the derived morphology of the aedeagus and particularly on the shapes and chaetotaxy of the male sternites VIII, Domene hei belongs to the Domene scabripennis species group. It is distinguished from other species of this group by the coloration of legs, the fine glossy line on the pronotum, the shape of the ventral process of the aedeagus and the slender sclerotized structure in the female genital segments. For illustrations of the species of the Domene scabripennis species group see Assing (in press a) and Assing and Feldmann (2014).

Etymology.

The species is dedicated to Wei-Jun He, specialist of Phasmatodea , who supported us on our field trips.

Distribution and natural history.

The type locality is situated in the Shengtang Shan to the southwest of Jinxiu, central Guangxi. The specimens were sifted from leaf litter in a rhododendron forest at altitudes of 1,200-1,400 m, together with Lathrobium shengtangshanense Peng & Li, 2012.