Thyanta Stål, 1862

The genus can be recognized by having the abdominal segment III without medial spiniform process; the peritreme have an elongate sulcus; the mandibular plates and the clypeus nearly equal in length; labium reaching at least the metacoxae; the femora are unarmed; the superior surface of the tibiae is sulcate; and the paramere is rounded and narrow, its apex is acute, sometimes with a lateral spiniform lobe (Rider & Chapin 1991).