Pheos Adamski, new genus

Type species.— Pheos aculeatus Adamski, by present designation. Pheos is known only from Costa Rica.

Diagnosis.— Pheos possesses a unique combination of male features unlike those possessed by other Blastobasinae . They include: spinelike apical process of ventral part of valva forming an elongate, inwardly directed spinelike process; spinelike process bearing a basal, ventrally directed (nearly 90°) spinelike process; digitate process of dorsal part of valva extending from near base of costa; proximal flange with three clusters of spinelike setae; and ventral articulation setose. This combination of features differentiates Pheos from all other Blastobasinae .

Etymology. The generic name is derived from the Greek pheos, a masculine noun meaning a spiny plant, and refers to the many spinelike setae and spinelike processes of the male valva of the genitalia.