Atopolinus tangi, 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 : 1765-1766

Atopolinus tangi nov.sp.

M a t e r i a l s t u d i e d: Holotype: Xizang A. R. (Tibet), Pailong, Bomi coun., 2200 m, L. Tang 4.VIII.2005 ( SNUC); paratype: same data, 4.VIII.2005, 1; Xizang A. R., Nielamu coun., Zhangmu town , 2200 m, Jian-Qing Zhu 17.VII.2010, 1 (without head and damaged) (cB).

D e s c r i p t i o n: Length of body about 5,8 mm; from anterior margin of head to posterior margin of elytra: 3,3 mm. Winged. Very similar to A. xizang nov.sp. from which is hardly distinguishable on the basis of external characters. Body smaller, yellowish colouration less evident, smaller head, less oblique anterior angles of pronotum, legs less diaphanous.

Posterior margin of 6° visible abdominal tergite protruding, with two lateral, short lobules ( Fig. 112 ); posterior margin of 6° visible abdominal sternite largely rounded ( Fig. 113 ). Tergite and sternite of the male genital segment as in Figs 114-115 . Aedeagus ( Fig.

116) 1,48 mm long, with long, asymmertical pseudoparameres; inner sac with a long distal spine and some median spines and big scales.

E t y m o l o g y: Patronymic. Dedicated to Liang Tang, friend and colleague, which gave me in study the material object of this contribution.

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 localities, in Tibet.

N o t e: I propose the figure of the aedeaagus of the holotype and paratype ( Figs 116- 117 ). They might seem belonging to two different species. In fact, the conformation and arrangement of the spines of the inner sac can vary from one specimen to another, being a mobile structure, stiffened in that position at the time of death. The identification must also take account of the other sexual characters: 6° visible abdominal tergite and sternite, male genital segment, size of the aedeagus, shape of the pseudoparameres.

For some characters of the aedeagus, this species is closely related to A. subnigroaeneus COIFFAIT 1982 from Nepal and W Bengala ( BORDONI 2002).

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).

Figs 116-120: aedeagus (bar scale: 0,1 mm) of Atopolinus tangi nov.sp. (116-117); male genital segment, sternite of the same, aedeagus (bar scale: 0,5 mm) of Atopolinus microtergalis nov.sp. (118-120).