Tachyusa coarctata, Erichson, Berol. (ZMHB, 1837

Pa ṡnik, Grzegorz, 2006, A revision of the World species of the genus Tachyusa Erichson, 1837 (Coleoptera, Staphylinidae: Aleocharinae), Zootaxa 1146, pp. 1-152 : 90

The coarctata group

The coarctata group is composed of twenty­two species restricted to the Holarctic Region and Africa. The group is characterized by the following combination of characters: puncturation of tergites 3–5 moderately dense; interstices between punctures 1.5–2.0 times their diameter; punctures small but well visible; puncturation of tergites 6–7 slightly denser than that on tergites 3–5; elytral puncturation dense, interstices between punctures equals their diameter; elytral puncturation distinctly asperate; abdominal pubescence short, dense and subrecumbent; and abdomen moderately glossy.