New species of Opogona Zeller, 1853 from St Helena Island (Lepidoptera: Tineidae: Hieroxestinae).

Thirty-three species of Opogona Zeller, 1853 are known from St Helena, a remote island in the South Atlantic Ocean. Thirty-one of these species are endemic, showing the important radiation within this genus, unique to this island in the Atlantic Ocean. Comprehensive field work in 2017 and 2018 led to the discovery of further unknown species. The most distinctive are described in this paper: O. pallidimargo sp. nov., O. duttonae sp. nov., O. barnensis sp. nov., O. cairnswickseorum sp. nov., O. fowlerella sp. nov., O. gigantea sp. nov., O. keyorum sp. nov., O. beardae sp. nov. This increases the number of species of Opogona on St Helena to forty-one. Illustrations of adults, genitalia and habitats are given.