Taxonomic revision of the genus Angulaphthona (Coleoptera: Chrysomelidae: Galerucinae: Alticini)

A revision of the genus Angulaphthona Bechyne, 1960 is provided, with a description of Angulaphthona confusa sp. n. from the Democratic Republic of Congo, and A. rossii sp. n. from Sierra Leone. The following synonymies are proposed: Angulaphthona latipennis (Pic, 1921) = A. latipennis zambeziensis (Bechyne, 1959) syn. n. and Angulaphthona pelengensis Bechyne, 1960 = A. exalta Bechyne, 1960 syn. n. The precedence of the name pelengensis is discussed. Angulaphthona violaceomicans (Chen, 1936) comb. n. (transferred from Aphthona) from Sri Lanka is established, and some hypotheses to explain the presence of the genus outside Africa are put forward. A key to the seven known species is supplied, with microphotographs of diagnostic characters, including male and female genitalia.