Gyrohypnus qinghai, Bordoni, 2013

Bordoni, A., 2013, New data on the Xantholinini from China. 24. New genus, new species and new records of the Shanghai Normal University collection (Coleoptera, Staphylinidae) 244 ° contribution to the knowledge of the Staphylinidae, Linzer biologische Beiträge 45 (2), pp. 1745-1797 : 1758

Gyrohypnus qinghai nov.sp.

M a t e r i a l s t u d i e d: Holotype: Qinghai Prov., Menda conv., 2200-2500 m, Hu, Tang & Zhu 24.VII.2004 ( SNUC).

D e s c r i p t i o n: Length of body about 5,5 mm; from anterior margin of head to posterior margin of elytra: 2,9 mm. Body shiny, apart the abdomen with transverse micro-striation. Reddish brown dark; antennae with 4°-11° articles lighter than the first three, brown dark; legs brown. Head sub-rectangular, but anteriorly narrow, with slightly rounded sides and strictly rounded posterior angles. Eyes small and almost flat. Surface of head with deep, evident, dense puncturation, apart a narrow median strip. Pronotum longer than head, anteriorly as wide as head, very dilated anteriorly, with oblique anterior margins, largely rounded anterior angles and sub-rectilinear sides. Elytra longer and wider than pronotum, a little dilated posteriad, with largely rounded humeral angles. Surface with wide, superficial punctures, arranged in 5-6 series, the median serie oblique. Abdomen with fine and sparse puncturation on the sides.

Tergite and sternite of the male genital segment as in Figs 63-64 . Aedeagus ( Fig. 65 ) small, 0,77 mm long, ovoidal narrow, especially in the proximal portion; parameres of particular shape, also in lateral view ( Fig. 66 ); inner sac very diaphanous, long and narrow.

E t y m o l o g y: The specific epithet refers to the type locality, as a noun in apposition.

G e o g r a p h i c a l d i s t r i b u t i o n: The species is known only from the type locality, in Qinghai.

N o t e: This species differs from the congeners by colouration, puncturation and aedeagus. In particular by the shape of the aedeagus, parameres and inner sac, devoid of scales and spines. The only known Gyrohypnus LEACH 1819 from China are the following: G. sichuanensis ZHENG 1995 (Sichuan: Wolong) and G. wutaishanensis BORDONI 2000 (Shaanxi: Wutaishan).

Figures

Figs 63-72: tergite, sternite of the male genital segment, aedeagus (bar scale: 0,1 mm), paramere in lateral view of Gyrohypnus qinghai nov.sp. (63-66); sixth visible abdominal tergite and sternite, tergite and sternite of the male genital segment, aedeagus (bar scale: 0,1 mm), with particular of the scales of Hypnogyra henanica nov.sp. (67-72).