Atopolinus xizang, 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 : 1765

Atopolinus xizang nov.sp.

M a t e r i a l s t u d i e d: Holotype: Xizang A. R. (Tibet), Hanmi, Motuo coun., 2200 m, L. Tang 19.VIII.2005 (without head) ( SNUC); paratype: same data, 1700-2000 m, 15.VIII.2005, 1 (cB).

D e s c r i p t i o n: Length of body about 6,6 mm; from anterior margin of head to posterior margin of elytra: 3,7 mm. Apterous. Body without micro-sculpture, apart the abdomen with traces of transverse micro-striature. Similar to A. hanmi nov.sp. but shorter, reddish brown light with anterior and posterior portions of the pronotum and humeral angles yellowish; elytra darker; antennae brown light and legs yellowish very light, diaphanous. Head similar to that of A. hanmi , with 4 punctures between the eyes to form a quadrilater, and some other sparse punctures posteriad. Eyes small and almost flat. Pronotum a little longer and narrower than head, with evident oblique anterior margins, very largely rounded anterior angles, and sinuate sides. Surface with dorsal series of 6 wide, spaced punctures and lateral series of 4 punctures. Elytra shorter and wider than pronotum, dilated posteriad, with scarcely rounded humeral angles. Surface with fine, spaced puncturation, arranged in three series, one near the suture, one median and one lateral. Abdomen with few, fine and sparse puncturation on the sides only.

Posterior margin of the 6° visible abdominal tergite elongated in a lobe. Male genital segment ( Fig. 109 ) with fused pleurae in the proximal portion; sternite of the same as in Fig. 110 . Aedeagus ( Fig. 111 ), 1,2 mm long, ovoidal, narrow, with asymmetrical pseudoparameres; inner sac with two series of big scales and spines.

E t y m o l o g y: The specific epithet refers to Xizang, 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 Tibet.

N o t e: This species was collected in the same locality of A. hanmi but differs immediately by the particular colouration, size, puncturation and aedeagus.

Figures

Figs 108-115: aedeagus (bar scale: 0,5 mm) of Atopolinus hanmi nov.sp. (108); male genital segment, sternite of the same, aedeagus (bar scale: 0,1 mm) of Atopolinus xizang nov.sp. (109- 111); sixth visible abdominal tergite and sternite, tergite and sternite of the male genital segment of Atopolinus tangi nov.sp. (112-115).