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

description: Chinecallicerus transversus nov.sp. (Figs 16, 20-23, Map 1)
T y p e m a t e r i a l: Holotype ♀: " CHINA: N-Sichuan, Minshan Mts, Baima pass, 3000 m, 5.-20.VII.2005 [collector not specified] / Holotypus ♀ Chinecallicerus transversus sp. n., det. V. Assing 2018" (cAss). Paratype ♀: same data as holotype (cAss).
E t y m o l o g y: The specific epithet (Latin, adjective) alludes to the distinctly transverse head and pronotum.
D e s c r i p t i o n: Body length 6.7-7.6 mm; length of forebody 2.9-3.0 mm. Habitus as in Fig. 20. Coloration: forebody blackish with the postero-sutural portions of the elytra slightly paler, more or less distinctly and more or less extensively pitchy-reddish; abdomen blackish, with the posterior margins of tergites III-VI indistinctly and very narrowly, those of tergites VII-VIII more distinctly and more broadly dark-reddish; legs brown with dark-yellowish tarsi; antennae and maxillary palpi dark-brown to blackishbrown.
Head (Fig. 21) distinctly transverse, approximately 1.2 times as broad as long; punctation dense and fine, but distinct; interstices with distinct microreticulation. Eyes distinctly convex and protruding from lateral contours of head, 0.7-0.8 times as long as postocular region in dorsal view. Antenna (Fig. 22) long and slender, approximately 2.4 mm long; antennomeres IV-X all distinctly oblong.
Pronotum (Fig. 21) distinctly transverse and large in relation to head, approximately 1.15 times as broad as long and nearly 1.3 times as broad as head, broadest slightly anterior to middle; disc very weakly convex in cross-section; punctation dense and rather fine, slightly more distinct than that of head; microsculpture practically obsolete.
Elytra (Fig. 21) large, approximately as long as pronotum; punctation very dense and slightly asperate; interstices with microsculpture. Hind wings fully developed.
Abdomen (Fig. 23) narrower than elytra; tergites III-VI with pronounced anterior impressions; punctation moderately fine and dense, only slightly sparser on tergite VII than on anterior tergites; anterior impressions of tergites III-VI with sparse and very fine punctation; fine transverse microsculpture present in places, but nearly obsolete, visible
only at high magnification (100 x); posterior margin of tergite VII with palisade fringe.
♂: unknown.
♀: posterior margin of tergite VIII distinctly concave in the middle; posterior margin of sternite VIII broadly and distinctly concave in the middle; spermatheca (Fig. 16) with long and slender distal 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 a distinctly transverse head, a large, transverse, and weakly convex (cross-section) pronotum, long and slender antennae, the presence of a pronounced anterior impression on the abdominal tergite VI (unique), the distinct concavity in the middle of the posterior margin of tergite VIII, and by the shape of the spermatheca.
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 Min Shan, North Sichuan (Map 1). The type specimens were sifted at an altitude of 3000 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 59-60, DOI: 10.5281/zenodo.3985251