Koleps Adamski, new genus

Type species.— Koleps angulatus Adamski, by present designation. Koleps is known only from Costa Rica.

Description and Diagnosis.— Koleps possesses a unique combination of male features unlike those possessed by other Blastobasinae . They include: valva with basal 1/2 narrow and parallelsided, apical 1/2 widening, with dorsal and ventral processes forming an irregular and angular apical part; costa acutely angled basally about 45°; middle part of costa with a row of setae along ventral margin; ventral margin with straight setae, longer than width of middle part; a slightly recurved digitate process juxtaposed ventrolaterally by a pair of upturned, slightly divergent, spinelike processes; ventrolateral margin with a spinelike process extending beyond a widened lobe bearing a densely packed cluster of straight and elongate, apicomarginal setae; and juxta absent. This combination of features differentiates Koleps from all other Blastobasinae .

Etymology. The generic name is derived from the Greek koleps, a masculine noun meaning bent knee, and refers to the acutely angled base of the costa of the male genitalia.