Santiago wittmanni sp. nov. do Peru e notas sobre Eucerini (Hymenoptera, Anthophoridae)

Santiago wittmanni sp. nov. from Canchaque, Huancabamba, Piura, Peru, is described and illustrated. For the first time, the female from Svastrina subapicalis (Brèthes, 1910) and the males of three species from Gaesischia Michener, LaBerge & Moure, 1955, are described.