Pterospoda nigrescens (Hulst), a synonym of ixala klotsi Sperry (Lepidoptera, Geometridae, Ennominae)

Abstract

Comparison of the types of Ixala klotsi (Sperry) and Pterospoda nigrescens (Hulst) shows that they are the same species, with I. klotsi a synonym of P. nigrescens. A lectotype of Selidosema nigrescens is designated, and the types of S. nigrescens and I. klotsi are illustrated. Male and female habitus and genitalia of P. nigrescens are illustrated. © C.D. Ferris, B.C. Schmidt.