Amarygmus

Amarygmus is a genus of darkling beetles (family Tenebrionidae). It is in the tribe Amarygmini and is the oldest genus of the tribe. The genus occurs in Australia (mainly in the north), New Guinea, Hawaii, Africa and Eurasia.

== Description == Amarygmus is a variable genus. Some descriptions of adults are given below: In species found in Borneo, the apices of the mandibles are bifid and not truncate. The femora of the legs are usually enlarged in the middle or at the apical third. There are hairs usually on the clypeus, legs, antennomeres and, frequently, as a sexual character on the underside of males. Traits found in related genera, such as long, erect hairs on pronotum and elytra (found in Bunamarygmus) are absent. In species found in Australia, the body is usually oval (rarely subparallel), convex and glabrous. Body length ranges from 6 to 15 mm. The colour is usually fuscous (dark) or black, sometimes metallic green or purple. The apices of the mandibles are bifid. The elytra are usually distinctly striate but sometimes only punctate. The tarsal vestiture is fulvous.