New species and notes on Dianthidiini (Hymenoptera, Megachilidae) from Peru. Duckeanthidium tarapotoense sp. nov. and Grafanthidium yurimaguasano sp. nov. from Tarapoto, Yurimaguas; Anthodioctes sanmartinensis sp. nov. and Anthodioctes shilcayensis sp. nov. from Tarapoto, Boca Toma, are described and illustrated. The male of Anthodioctes indescriptus (Dalla Torre, 1890) is described for the first time and new records of Bothranthidium lauroi Moure, 1947, are given.
Dianthidiini; Neotropical; new records; new species; taxonomy