Tsivoka Villiers, 1982, 2011

The genus Tsivoka Villiers, 1982 View in CoL

Family Cerambycidae Subfamily Cerambycinae Tribe Dorcasomini Subtribe Apatophyseina

Genus Tsivoka Villiers, 1982: 132 View in CoL , 157, 159

Tsivoka Villiers, Quentin & Vives, 2011: 39 View in CoL , 342

Tsivoka Švácha & Lawrence, 2014: 134 View in CoL , 142 Type-species: Tsivoka testaceipes ( Fairmaire, 1889) View in CoL

Redescription of Tsivoka Villiers, 1892 (Revised from Villiers et al. 2011): Head with an elongate and subparallel rostrum. Genae extended beyond the lower lobe of the eyes, which are finely faceted, narrow and weakly indented. Frons almost flat, divided by a dorsal furrow that extends from the inter-antennary area up to the level of the posterior edge of the eyes, short and subparallel temples. Mandibles large, falcate, inner margin sinuate. Maxillary and labial palps densely covered with fine setae. Antennae inserted in front of the eyes, closer to them than to the base of the mandibles; base of antennae prominent and close together; scape long, curved at apex; antennomere III slightly shorter than scape, subequal to IV; V and the following ones longer than IV, and projected at the external apical angle from VI to X. Strongly convex pronotum with barely marked disc tubercles, the two medians close together, often obsolete, the two posterior ones further apart and a more evident; anterior margins and posterior margins strongly depressed, finely rimmed; almost straight posterior half of sides, strongly convergent forward, this line break forming an obtuse angle. Scutellum as long as it is wide. Elytra strongly narrowed from anterior to posterior, humeri slightly prominent in males, more strongly so in females; apex truncate. Fusiform femora; straight tibiae, metatibiae widened at apex and, in males, with a small process at the end of the inner edge; protarsomeres strongly dilated in males; metatarsomeres I as long or longer than the metatarsomeres II-V together; onychium strongly dilated and toothed in males. Tergite VII of males subrectangular, longer than wide; sternite VII with a wide but shallow indent; sternite VIII short and deeply indented. Apically lobed tegmen very long, arched, and pubescent. Male genitalia of the same type as in Mastododera .

Remarks: Tsivoka has been observed on the flowers of Mimosa latespinosa Lamarck, 1806 ( Fabaceae ) in bright sunlight ( Villiers et al. 2011).