Pseudolathra longicollis, Rougemont, 2015

Rougemont, Guillaume de, 2015, New Oriental and Papuan Pseudolathra (Coleoptera, Staphylinidae, Paederinae), Linzer biologische Beiträge 47 (2), pp. 1785-1799 : 1791

Pseudolathra longicollis nov.sp.

( Figs 8 fb, 8 s7, 8 s8, 8 al, 8av)

Material examined: Holotype: INDIA, Meghalaya, Garo Hills , 2.XI, Songsak, 400 m., Besuchet Löbl 78 [ MHNG].

Description: Length: 6.5 mm; length of fore-body: 3.1 mm. Head and pronotum black, elytra a uniform light brown, abdomen dark brown, the posterior margin of each segment reddish; mouthparts, antennae and legs rufo-testaceous. Fore-body: Fig. 8 fb. Head transverse (3 x 3.3 mm), eyes moderate, about as long as temples; puncturation similar to related species: 2 frontal punctures, 2 ocular punctures, a group of 3 punctures near anterior ocular puncture, a few other punctures in postero-lateral area, and the usual transverse row along posterior margin. Pronotum elongate (3.8 x 4.2), the sides parallelsided, the series of 5 discal and 4 lateral punctures small. Elytra about as long as broad (4.5 mm), discal series of 6-7 punctures, lateral series of 9-10 punctures. Puncturation of abdominal tergites as in the previous species, but a little coarser, especially on segments III-V.

Male: sternite VII with a broad shallow emargination, on either side with a few sparse short black setae; emargination of sternite VIII extending to about 1/3 rd the length of sternite; aedoeagus: Figs 8 al, 8av.

This species stands out from other members of the Nigerrima group most obviously by the combination of brown elytra, small size and elongate pronotum, proportions that are more characteristic of the Unicolor group; in this it is akin to P. mahratta nov.sp. described below, from which it is easily distinguished by its brown elytra and the shape of the ventral process of the aedoeagus, which is longer, more pointed, and projects beyond the apex of the dorsal blade.

Figures

Figs 7-8: Fore-body (fb), aedoeagus in lateral view (al), aedoeagus in ventral view (av), male sternite VII (s7), male sternite VIII (s8) of: 7: P. ivani; 8: P. longicollis Fig. 7: P. ivani 7fb 7al 7av 7s7 Fig. 8: P. longicollis 8fb 8al 8av 8s8