Revision of the genus Histeromorphus (Coleoptera: Tenebrionidae) from the Socotra Archipelago with descriptions of three new species
Histeromorphus Kraatz, 1865, a genus endemic to the Socotra Archipelago is revised and all species are redescribed. Histeromorphus plicatipennis Waterhouse, 1881 is resurrected from synonymy with H. plicatus Kraatz, 1865. Lectotypes are designated for H. undatus Gahan, 1900, H. plicatus, and H. plicatipennis. As a result of recent biodiversity research on Socotra Island, three new species are described: Histeromorphus carinatus sp. nov., H. convexicostatus sp. nov. and H. nogedensis sp. nov. All species are figured and keyed.