Chrisanthidium gen.n. is here proposed (Type spe-cies: Anthidium bidentatum Friese, 1908). Chrisanthidium nigritum sp.n. and Chrisanthidium adornatum sp.n. both from Argentina, are described, as well as Chrisanthidium bidentatum (Friese, 1908), comb.n..
Apoidea; Megachilidae; Anthidiinae; Chrisanthidium; new genus; taxonomy