Paratesba siamensis BORDONI 2002

Bordoni, A., 2009, New data on Xantholinini from the Oriental Region. XXI. Yunnella gollkowskii nov. sp. from Myanmar and description of the male of Paratesba siamensis BORDONI (Coleoptera: Staphylinidae, Xantholinini) 201. contribution to the knowledge of the Staphylinidae, Linzer biologische Beiträge 41 (2), pp. 1863-1866 : 1863

Paratesba siamensis BORDONI 2002 ( Figs 1-4 )

M a t e r i a l e x a m i n e d: Thailand, Chiang Mai, Ban San Pakia, 1400 m, Bednarik 1- 19.V.1998, 13 (in coll. Janak).

N o t e s: This species was described ( BORDONI 2002) from Doi Suthep, near Chiang Mai, in North Thailand, on the basis of a female preserved in the Naturhistorisches Museum of Berlin. So far the male was unknown, therefore I figure the labrum (fig. 1), usually an important systematic character, and I propose a short description of the male genital characters: tergite of the genital segment very narrow and extended (fig. 2), sternite as in fig. 3; aedeagus of big size (2 mm long), extended, with sinuate lateral sides, asymmetrical parameres and internal sac rolled ribbon-like, covered by very small and sparce scales (fig. 4). This is the smallest species of the genus known so far (body 15-19 mm long).

Figures

Figs 1-7: Paratesba siamensis BORDONI: (1) labrum, (2) tergite of the male genital segment, (3) sternite of the same, (4) aedeagus. Yunnella gollkowskii nov.sp.: (5) tergite of the male genital segment, (6) sternite of the same, (7) aedeagus (scale: 0.1 mm).