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

description: Chinecallicerus grandicollis nov.sp. (Figs 26-32, Map 1)
T y p e m a t e r i a l: Holotype ♀: " CHINA - Yunnan, Gaoligong Shan, pass SW Baoshan, 4.- 6.VI.2006 Jeniš / Holotypus ♀ Chinecallicerus grandicollis sp.n., det. V. Assing 2018" (cAss).
E t y m o l o g y: The specific epithet (adjective) alludes to the relatively large pronotum.
D e s c r i p t i o n: Body length 4.3 mm; length of forebody 2.1 mm. Habitus as in Fig. 26. Coloration: head blackish; pronotum and elytra brown; abdomen dark-brown with the posterior margins of the segments broadly yellowish-red; legs dark-yellowish; antennae dark-brown with the basal two antennomeres slightly paler; maxillary palpi brown with the apical palpomere pale-yellowish.
Head (Fig. 27) distinctly transverse, 1.12 times as broad as long; posterior angles weakly marked; punctation rather sparse and extremely fine, visible only at high magnification; interstices with shallow, but distinct microsculpture. Eyes moderately convex and approximately as long as postocular region in dorsal view. Antenna (Fig. 28) 1.65 mm long and massive; antennomeres IV distinctly transverse, V-IX weakly transverse, X approximately as long as broad, and XI approximately as long as the combined length of IX and X.
Pronotum (Fig. 27) distinctly transverse and large in relation to head, approximately 1.2 times as broad as long and nearly 1.4 times as broad as head, broadest approximately in the middle; disc very weakly convex in cross-section; punctation dense and extremely fine; microsculpture very shallow.
Elytra (Fig. 27) slightly shorter than pronotum; punctation very dense and fine, but more distinct than that of head and pronotum; interstices with shallow microsculpture. Hind wings fully developed.
Abdomen (Fig. 29) narrower than elytra; tergites III-V with shallow anterior impressions; anterior portions of tergites III-V with very fine scattered punctation; remainder of tergites III-VI with moderately dense and fine punctation; tergite VII with sparse punctation; interstices with extremely fine and shallow transverse microsculpture visible only at high magnification; posterior margin of tergite VII with palisade fringe.
♂: unknown. ♀: posterior margin of tergite VIII broadly and weakly convex (Fig. 30); posterior margin of sternite VIII weakly convex, in the middle indistinctly concave (Fig. 31); spermatheca (Fig. 32) with truncate distal portion and very short proximal portion.
C o m p a r a t i v e n o t e s: This species is distinguished from all its congeners by the combination of a large (in relation to head), distinctly transverse, and weakly convex (cross-section) pronotum with very fine punctation, massive antennae, very fine and scattered punctation of the anterior portions of tergites III-VII, and by the distinctive shape of the spermatheca.
D i s t r i b u t i o n: The type locality is situated in the Gaoligong Shan in the northwest of Yunnan province, China (Map 1). Additional data are not available.
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 60-61, DOI: 10.5281/zenodo.3985251