Tachyusa boopina Scheerpeltz, 1963

Pa ṡnik, Grzegorz, 2006, A revision of the World species of the genus Tachyusa Erichson, 1837 (Coleoptera, Staphylinidae: Aleocharinae), Zootaxa 1146, pp. 1-152 : 85-86

Tachyusa boopina Scheerpeltz, 1963 ( Fig. 81)

Tachyusa boopina Scheerpeltz, 1963: 442 .

Type material. Holotype: ♀: [ Sudan]: Nubien , Wadi­Halfa , Nilufer, Graswurzeln, 22.I.1962 ( NMW).

Redescription. Body. Length 2.9 mm, convex, parallel­sided, glossy; head black, pronotum reddish yellow, elytra brown, with base and apical margin yellowish red, abdomen black with three basal tergites red, legs yellow, antennae brown with antennomeres 1–3 yellow.

Head circular in outline; convex, eyes large, moderately protruding from lateral contours of head, length of each seen from above 1.5 times longer than postocular region; surface of head without microsculpture; puncturation fine and moderately dense. Antennae short, clearly increasing in width apically, antennomeres 2 and 3 subequal in length, antennomeres 4–6 longer than wide, antennomeres 7–10 quadrate, antennomere 11 nearly conical.

Pronotum quadrate, lateral sides gradually narrowed in straight line to obtuse hind angles; before base with small and shallow transverse impression; surface without microsculpture; puncturation relatively coarse, dense and asperate; pubescence at midline directed posteriorly.

Elytra subquadrate, at suture as long as pronotal length at midline; surface lacking microsculpture; puncturation fine and moderately dense.

Abdomen parallel­sided, bases of tergites 3–5 each with deep transverse impression, impressions with 7–8 longitudinal ridges, tergal puncturation fine and relatively sparse, punctures small and weakly visible, surface without microsculpture.

Female. Spermatheca as in Fig. 81.

Male unknown.

Remarks. Tachyusa boopina is very similar to T. nilensis , from which it can be distinguished by the paler coloured pronotum, the eyes longer than temples, the stronger convex pronotum and by the shape of the spermatheca.

Distribution. Based on the revised records, T. boopina is known only from Sudan.