Mormogystia is a genus of moths belonging to the family Cossidae. Diagnosis Mormogystia is distinguished from all other Cossidae genera by having large silvery areas on the forewing. Description Medium-sized, brightly coloured moths. Male antennae bipectinate with very short processes; female antennal pecten much reduced. Large silvery areas on the forewing forming fasciae make this the only Cossidae genus to have such a high contrast pattern. Hindwings are uniform. Distribution The genus consists of four species distributed in north Africa, the Levant, Arabian Peninsula and Kenya. Species Mormogystia brandstetteri Saldaitis, Ivinskis & Yakovlev, 2011 Mormogystia equatorialis (Le Cerf, 1933) Mormogystia proleuca (Hampson in Walsingham et Hampson, 1896) Mormogystia reibellii (Oberthür, 1876) References Cossidae of the Socotra Archipelago (Yemen) Cossinae