Liocyrtusa Daffner, 1982

Peck, Stewart B. & Cook, Joyce, 2013, Systematics and distributions of the genera Cyrtusa Erichson, Ecarinosphaerula Hatch, Isoplastus Horn, Liocyrtusa Daffner, Lionothus Brown, and Zeadolopus Broun of the United States and Canada (Coleoptera: Leiodidae: Leiodinae: Leiodini), Insecta Mundi 2013 (310), pp. 1-32 : 9-10

Liocyrtusa Daffner

Liocyrtusa Daffner, 1982: 209 . Type species: Anisotoma minutum Ahrens, 1912 , by original designation. Daffner 1983: 132; 1988: 284.

Cyrtusa Brown, 1937b: 171 ; nec Cyrtusa Erichson, 1842 .

Diagnosis. Body moderately convex. Antenna with 11 antennomeres, with 5-antennomere club interrupted at antennomere 8, which is narrow and disc-shaped but clearly visible. Mandibles forming semicircle when closed together, and without prominent teeth. Ventral side of head without antennal grooves. Mesosternum vertical between the mesocoxae, not carinate. Tibiae uniformly widened apically; protibia with distinct tarsal groove, its outer margin strongly spinose; mesotibia outer margin with two dense rows of spines; outer margin of metatibia with short, strong spines. Tarsal formula 5-5- 4 in both sexes. Males distinguished by strongly curved mesotibiae bearing process on inner apical margin and by strong tooth-like expansion of lower margin of metafemur.

Distribution. The genus is Holarctic in distribution; it also occurs in India, Thailand, and China ( Newton 1998).