A new genus of African Lasiocampidae (Lepidoptera)

The species Gastroplakaeis idakum Bethune-Baker, 1913, G. balia Tams, 1929, and G. elongata Hering, 1941 are transferred from the genus Gastroplakaeis Möschler, 1887 into the newly erected genus Weirdonia gen. n. (the type species is Gastroplakaeis idakum Bethune-Baker, 1913), and corresponding new combinations are established. New species, Weirdonia baccara sp. n. and W. hypocrita sp. n. (type locality: Democratic Republic of the Congo), W. murena sp. n. (type locality: Northern Nigeria), and W. helicea sp. n. (type locality: Gabon) are described. A new synonymy is established: Gastroplakaeis balia Tams, 1929 = Gastroplakaeis elongata Hering, 1941 syn. n. Diagnoses and distribution maps are given for all the species.