Drusius Cloudywing (Thorybes drusius [W. H. Edwards])
Wing span: 1 1/2 - 1 3/4 inches (3.8 - 4.5 cm).
Identification: Forewing is pointed; lower half of hindwing has white fringe. Upperside is black-brown with very small, clear spots on the forewing. Male has a costal fold containing scent scales on the forewing. Underside is dark brown; hindwing with dark outlines instead of solid bands.
Life history: Not reported.
Flight: Several broods from April-August.
Caterpillar hosts: Cologania angustifolia and other Fabaceae.
Adult food: Flower nectar including that from Aloysia and Guardiola.
Habitat: Oak woodland, desert grassland, canyons, streamsides.
Range: Local and uncommon. Arizona to west Texas; south into Mexico.
