Genus Carohamilia Dyar, 1940

Carohamilia Dyar, 1940: 1269 . Type species (by original designation): Lentagena ophelia Schaus, 1921 .

Description. Antenna grey-beige, bipectinate from base to halfway along length, distal half filiform. Length of fore wing 13–22 mm. Low-contrast wavy pattern on forewings is typical. Expressed portion of reticulated black pattern on border of R4, R5 with RM-cell. Black trapezoidal spot at base of fore wing. Hind wings lighter than fore wings, wavy pattern less expressed.

Male genitalia. Uncus triangle, slightly elongated apically; gnathos arms ribbon-like, thin; gnathos reduced; valve apically rounded, costal edge relatively smooth; juxta with two leaf-like lateral processes directed dorsally; saccus robust, elongated, tapered, apically rounded; phallus thin, longer than valve, slightly thickened basally, vesica with thin belt-shaped cornutus.

Diagnosis. Externally, the genus is most similar to Psychonoctua Grote, 1865 (Figs. 10, 16), but differs by the thin, long phallus and the long tapered saccus.

Distribution. USA (Texas), Mexico, Guatemala, Belize, Costa Rica, Panama, Colombia, Ecuador.