The Sepidiini is a tribe of ground-dwelling darkling beetles (Tenebrionidae),[1] that occurs across Africa, the Mediterranean Basin, the Arabian Peninsula and Mesopotamia.

Subtribe Trachynotina excepting, they show an almost uniform tendency to be nocturnal, crepuscular or shade-loving.

[2] Like the tribe Tentyriini, their daily rhythm is based on a strictly nocturnal ancestral disposition.

Their open and non-connate body sutures suggest the enjoyment of nocturnal conditions and night moisture.

[2] At night, a surface secretion of a sometimes pruinescent or waxy substance has been noted on the bodies of genera Brinckia, Namibomodes, Synhimba and Ocnodes (or Phanerotomea).