Calotheca nigromaculata species-group from sub-Saharan Africa with descriptions of two new species from KwaZulu-Natal (Chrysomelidae, Galerucinae, Alticini)

Calotheca wanati sp. nov. A habitus, ♂ (holotype, KZN, Ubombo Mountain Nature Reserve) B median lobe of aedeagus, from left to right in ventral, dorsal, and lateral view (KZN, Ubombo Mountain Nature Reserve) C head, and pronotum, ♂ (KZN, Ubombo Mountain Nature Reserve) D spermatheca (KZN, Ubombo Mountain Nature Reserve). Abbreviations: bf = basal furrow; fg = frontal groove; pls = punctate lateral stria.