Abstract
The comosa group of the genus Euxoa is defined on the basis of genital characters. The species in the group are: comosa (Morrison), lineifrons (Smith), guadalupensis new species, lucida Barnes and McDunnough, fumalis (Grote), and occidentalis new species. On the basis of geographical variation of adults, life history data, and experimental hybridization, populations of E. comosa are arranged in five subspecies. Adults and genitalia are illustrated and a synopsis is given for each species and subspecies.

This publication has 6 references indexed in Scilit: