Chinecallicerus reticulatus, Assing, 2015

Assing, Volker, 2015, Two new species of Chinecallicerus (Coleoptera: Staphylinidae: Aleocharinae: Geostibini), Linzer biologische Beiträge 47 (1), pp. 249-256 : 254-255

publication ID	https://doi.org/ 10.5281/zenodo.5280245
persistent identifier	https://treatment.plazi.org/id/9F6987CC-7424-CA04-FF38-ECC34027FBA1
treatment provided by	Marcus
scientific name	Chinecallicerus reticulatus
status	sp. nov.

Treatment

Chinecallicerus reticulatus View in CoL nov.sp. ( Figs 10-15 View Figs 10-15 , Map 1 View Map 1 )

T y p e m a t e r i a l: Holotype Ƌ: " CHINA [13] - Yunnan, mt. SE Gejiu, graveyard with pine, 23°18'27''N, 103°11'41''E, 2400 m, 20.VIII.2014, V. Assing / Holotypus Ƌ Chinecallicerus reticulatus sp.n., det. V. Assing 2015" (coll. Assing). GoogleMaps

E t y m o l o g y: The specific epithet (Latin, adjective) alludes to the pronounced microreticulation of the forebody.

D e s c r i p t i o n: Body length 5.7 mm; length of forebody 2.4 mm. Coloration: head blackish; pronotum dark-brown; elytra brown; abdomen with segments III-V brown to dark-brown, segments VI-VII and anterior portion of VIII blackish-brown to blackish, and the apex pale-brown; legs yellowish; antennae blackish-brown; maxillary palpi yellowish.

Head ( Fig. 10 View Figs 10-15 ) distinctly transverse, 1.15 times as broad as long, broadest across eyes, narrowed towards posterior constriction immediately behind eyes; postero-lateral con- tours between posterior margin of eye and posterior constriction nearly straight in dorsal view; punctation rather fine and moderately dense, barely visible in the pronounced microreticulation ( Fig. 11 View Figs 10-15 ); dorsal surface matt. Eyes large and strongly convex, longer than distance from posterior margin of eye to posterior constriction of head in dorsal view. Antenna conspicuously long (2.7 mm); all antennomeres distinctly oblong ( Fig. 12 View Figs 10-15 ).

Pronotum ( Fig. 10 View Figs 10-15 ) very weakly transverse, 1.06 times as broad as long and 1.23 times as broad as head, broadest approximately halfway between anterior angles and middle of lateral margins; punctation and microsculpture similar to those of head ( Fig. 13 View Figs 10-15 ); pubescence of midline directed caudad.

Elytra ( Fig. 10 View Figs 10-15 ) approximately as long as pronotum; punctation very fine and dense; interstices with pronounced microreticulation and matt. Hind wings fully developed.

Abdomen ( Fig. 14 View Figs 10-15 ) narrower than elytra; punctation moderately dense and rather fine on tergites III-VI, sparse and even finer on tergite VII; microsculpture composed of extremely fine and superficial transverse striae visible only at high magnification; posterior margin of tergite VII with palisade fringe.

Ƌ: unknown.

♀: tergite VIII with strongly convex posterior margin; posterior margin of sternite VIII weakly convex in the middle; spermatheca 0.27 mm long and shaped as in Fig. 15. View Figs 10-15

C o m p a r a t i v e n o t e s: The new species is distinguished from all the previously described Chinecallicerus species by the pronounced microsculpture of the whole forebody alone. It differs from C. subater , which is similar in this respect, by greater body size, the completely yellowish maxillary palpi, the much larger eyes, the distinctly transverse head, the much longer antennae with all the antennomeres distinctly oblong, and by the less transverse pronotum.

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 a mountain to the southeast of Gejiu in southeastern Yunnan ( Map 1 View Map 1 ). The holotype was sifted from litter and roots in herbaceous vegetation in an old graveyard with pine at an altitude of 2400 m.