Notas taxonômicas e espécies novas de Nananthidium Moure e descrição do macho de Bothranthidium Moure (Hymenoptera, Megachilidae)

The Anthidiine bees Nananthidium analuizae sp.n., Nananthidium foersteri sp.n. and Nananthidium panamense sp.n. are described. New combinations are proposed to Nananthidium quadrimaculatum (Cockerell, 1927) and Nananthidium gualanense (Cockerell, 1912). By the first time notes on the morphology of the male of Bothranthidium Moure, 1947 are presented