Revision of the genus Arctiocossus Felder, 1874 and allied genera (Lepidoptera: Cossidae: Cossinae)

The genus Arctiocossus Felder, 1874 proved to be an assemblage of unrelated species. In its revised concept, the genus contains only species which exhibit a proximal extension of the juxtal processes in the male genitalia and a short ovipositor in females. The forewing pattern is dominated by a large, white patch stretching from the wing base to the end of the discal cell. These characters are only present in the type species A. antargyreus Felder, 1874 and in three new species described below as A. farinalis spec. nov., A. namaquensis spec. nov., and A. martinkruegeri spec. nov. The remaining species of Arctiocossus are excluded from the genus and are transferred to three different genera: Afroarabiella Yakovlev, 2008, Lichtensteiniana gen. nov. and Namibiocossus gen. nov. Together with the establishment of the new genera four additional species are described as new: Lichtensteiniana brandbergensis spec. nov., L. aloides spec. nov., L. fuscoalaria spec. nov., and Namibiocossus uhligorum spec. nov. The descriptions of the new taxa are accompanied by photographs of the adult moths and illustrations of the male and female genitalia. With the exception of Afroarabiella, the genera treated herein are elements endemic to southwestern Africa.