Cephalocousya yunnanica, Assing, 2018

Cephalocousya yunnanica View in CoL nov.sp. ( Figs 1-3 View Figs 1-9 )

T y p e m a t e r i a l: Holotype ♀: " CHINA: N-Yunnan Diqing Tibet. Aut. Pr. Deqin Co. Baima Shan, pass 25 km SE Deqin, 28°19.38'N, 99°05.47'E 4225 m, 8.VI.2005 A Smetana [C154] / Holotypus ♀ Cephalocousya yunnanica View in CoL sp.n., det. V. Assing 2018" (cSme) GoogleMaps . Paratypes: 1♀: same data as holotype (cAss) GoogleMaps ; 3♀♀: " CHINA: N-Yunnan [ 2005-06], Diqing Tibet. Aut. Pref., Deqin Co., Baima Shan , pass 25 km SE Deqin, 4225 m / 28°19.38'N, 99°05.47'E, small creek valley, Rhododendron, Salix, leaf litter, moss, dead wood, sifted, 8.VI.2005, M. Schülke [C2005-6]" (MNB, cAss) GoogleMaps .

E t y m o l o g y: The specific epithet is an adjective derived from Yunnan, the Chinese province where the type locality is situated.

D e s c r i p t i o n: Body length 3.8-3.9 mm; length of forebody 1.7 mm. Habitus as in Fig. 1 View Figs 1-9 . Coloration: body including antennae and maxillary palpi blackish; legs reddishbrown.

Head approximately as broad as long and of orbicular shape; punctation moderately sparse and extremely fine; interstices with shallow microreticulation and some shine. Eyes small, approximately half as long as postocular region in dorsal view. Antenna approximately 0.9 mm long; antennomere IV weakly transverse; antennomeres V-X distinctly transverse and gradually increasing in width, X approximately 1.5 times as broad as long.

Pronotum approximately 1.15 times as broad as long and 1.1 times as broad as head, broadest in anterior half; punctation denser and more distinct than that of head; interstices with shallow microsculpture and glossy.

Elytra 0.90-0.95 times as long as pronotum; punctation dense and shallow, slightly more distinct than that of pronotum; interstices with shallow microsculpture. Hind wings not examined. Metatarsomere I approximately as long as the combined length of II-IV.

Abdomen approximately as broad as elytra; tergites III-V with moderately shallow, tergite VI with even shallower anterior impressions; punctation dense and fine; microreticulation distinct on all tergites, particularly so in the anterior impressions of tergites III- VI; posterior margin of tergite VII with palisade fringe.

♂: unknown.

♀: posterior margin of tergite VIII convex; posterior margin of sternite VIII weakly convex, in the middle shallowly concave; spermatheca as in Figs 2-3. View Figs 1-9

C o m p a r a t i v e n o t e s: Cephalocousya yunnanica is distinguished from C. nivicola by a distinctly more glossy forebody owing to the shallower microsculpture, a more glossy abdomen, a larger head (in relation to pronotum), a larger abdomen ( C. nivicola : abdomen narrower than elytra), 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: Cephalocousya yunnanica is currently the sole representative of the genus in China. The Baima Shan ( type locality) is situated in Northwest Yunnan. The specimens were collected at an altitude of 4425 m.