Mahavana anomala, Bordoni, 2010

Bordoni, A., 2010, New data on the Xantholinini from the Oriental Region. XXII. New species from Laos (Coleoptera, Staphylinidae) 203 ° contribution to the knowledge of the Staphylinidae, Linzer biologische Beiträge 42 (1), pp. 523-528 : 524

Mahavana anomala nov.sp.

T y p e m a t e r i a l: Holotype: NE Laos, Xamneua , Seleui vil., Phu Pan, T. Tsuru et al. 16- 24.V.2004 (cS).

D e s c r i p t i o n: Body length 5 mm; length from anterior margin of head to posterior margin of elytra 2.5 mm. Yellow with brown head. Head elongate (fig. 4), narrow, slightly dilated anteriorly, with large and protruding eyes. Antennae without particular characters. Surface shiny, with fine and scattered punctures and long yellow pubescence. Pronotum narrow, slightly longer and narrower than head, with very oblique anterior margins and obsolete anterior angles, sides almost not sinuate. Surface shiny, with dorsal series of 10-11 punctures and lateral series of 6-7 irregular punctures. Elytra very large, wide, distinctly larger, wider and much longer than pronotum, with distinct humeri. Surface slightly irregular, with fine and dense punctation placed in numerous series. Abdomen with polygonal micro reticulation and very fine and very scattered punctation.

Male genital segment long and narrow ( Fig. 5 ); sternite of the same as in Fig. 6 . Aedeagus ( Fig. 7 ) ovoid, very minute (0.74 mm long), with symmetrical parameres of peculiar shape; internal sac with three areas of very tiny scales and distal series of large scales.

D i s t r i b u t i o n: Known only from the type locality.

E t y m o l o g y: The epithet is based on the Latin anomalus - a - um (anomalous) by the shape of the antennae, head and aedeagus.

N o t e s: This species differs from the other species of the genus by the antennae without big antennomeres, head narrow and slightly dilated anteriorly, sexual characters.

Figures

Figs 1-7: Metolinus laotianus nov.sp.: tergite (1) and sternite (2) of the male genital segment, aedeagus (3); Mahavana anomala nov.sp.: head (right half omissed) (4), male genital segment (5), sternite of the same (6), aedeagus (7) (scale: 0.1 mm).