Onespa, Steinhauser, 1974

Austin, George T. & Warren, Andrew D., 2009, New looks at and for Onespa, Buzyges, and Librita (Lepidoptera: Hesperiidae: Hesperiinae), with new combinations and descriptions of a new genus and six new species, Insecta Mundi 2009 (89), pp. 1-55 : 16

Key to female Onespa (female of O. nakamura unknown)

1. Macules of forewing white (except yellow in CuA 2 -2A), ventral hindwing red-brown .... O. nubis Steinhauser

— Macules of forewing pale to medium orange, ventral hindwing not red-brown (olive- to orangebrown) ....................................................................................................................................... 2

2. Dorsal forewing macules narrow and not forming continuous postmedial band, ventral hindwing olive-brown ................................................................................................... O. gala (Godman)

— Dorsal forewing macules broad and forming nearly continuous postmedial band, ventral hindwing orange-brown ............................................................................. O. brockorum , new species