Chinecallicerus carinatus Assing 2018, nov.sp.
Creators: name: Assing, Volker
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Staphylinidae
Chinecallicerus
Chinecallicerus carinatus

description: Chinecallicerus carinatus nov.sp. (Figs 1-6, Map 1)
T y p e m a t e r i a l: Holotype ♂: " CHINA N Sichuan, Xiao Zhaizi National Nature Reserve, 7 km W of Qingpianxiang, 1560-1700 m, Xiaozhaizi, 27.6.- 1.7.2017, FIT, 32°1'25''N 103°56'21''E, lgt. P. Kabátek, O. Konvička, P. Viktora / Holotypus ♂ Chinecallicerus carinatus sp. n., det. V. Assing 2017" (SCS). Paratypes: 1♂, 1♀: same data as holotype (MMB, cAss).
E t y m o l o g y: The specific epithet (Latin, adjective) alludes to the sharp median carina on the male tergite VII.
D e s c r i p t i o n: Body length 3.8-4.5 mm; length of forebody 1.9-2.0 mm. Coloration: head blackish; pronotum dark reddish-brown; elytra pale-brown; abdomen blackish with the apex and mostly also the anterior segments somewhat paler; legs yellow; antennae reddish to brown with the basal antennomeres at least slightly paler; maxillary palpi yellowish.
Head (Fig. 1) approximately as long as broad and of subquadrate shape; punctation very fine, barely noticeable in the pronounced microreticulation; dorsal surface practically matt. Eyes moderately convex and rather small, much shorter than distance from posterior margin of eye to posterior constriction of head in dorsal view. Antenna (Fig. 1) approximately 1.5 mm long; antennomeres IV more distinctly, V-X weakly transverse.
Pronotum (Fig. 1) weakly transverse, barely 1.1 times as broad as long and 1.3-1.4 times as broad as head, broadest slightly before middle; punctation and microsculpture similar to those of head; surface practically matt; pubescence of midline directed caudad.
Elytra (Fig. 1) approximately 0.9 times as long as pronotum; punctation very dense and very fine, barely noticeable in the pronounced microreticulation; surface nearly matt. Hind wings fully developed.
Abdomen narrower than elytra; punctation moderately dense and fine on tergites III-VI, very sparse on tergite VII; transverse microsculpture very shallow on tergites III-VI, more distinct on tergite VII; tergites III and IV without sexual dimorphism; posterior margin of tergite VII with palisade fringe.
♂: tergite VII with sharp and relatively long median carina posteriorly (Figs 2-3); posterior margin of tergite VIII smoothly convex (Fig. 2); sternite VIII with strongly convex posterior margin; median lobe of aedeagus 0.45 mm long and shaped as in Figs 4-5.
♀: tergite VIII shaped as in male; sternite VIII with broadly and weakly convex posterior margin; spermatheca shaped as in Fig. 6.
D i s t r i b u t i o n a n d n a t u r a l h i s t o r y: The type locality is situated in Xiao Zhaizi National Nature Rerserve (China: North Sichuan) (Map 1). The specimens were collected with a flight interception trap at an altitude of 1560-1700 m.
description: Published as part of Assing, Volker, 2018, Six new species of Chinecallicerus from China, with a new synonymy (Coleoptera: Staphylinidae: Aleocharinae: Geostibini), pp. 47-63 in Linzer biologische Beiträge 50 (1) on pages 51-57, DOI: 10.5281/zenodo.3985251