Anthidium sanguinicaudum Schwarz, 1933:8, ♂♀. Holotype ♂, Mamatoco, Santa Marta, Colombia, at an elevation of 500 feet, Feb. 18,1927 (British Museum, leg. M.A.C.); Gonzalez & Griswold, 2013Gonzalez, V.H. & T.L. Griswold 2013. Wool carder bees of the genus Anthidium in the Western Hemisphere (Hymenoptera: Megachilidae): diversity, host plant associations, phylogeny, and biogeography. Zoological Journal of the Linnean Society 168:221-425.:352, Holotype ♂ (BNHM). - Schwarz, 1933Schwarz, H.F. 1933. Some neotropical Anthidiinae: Anthidium, Heteranthidium, and Dianthidium. American Museum Novitates 624:1-27. (distribution); Urban, 2002Urban, D. 2002. O gênero Anthidium Fabricius na América do Sul: chave para as espécies, notas descritivas e de distribuição geográfica (Hymenoptera, Megachilidae, Anthidiini). Revista Brasileira de Entomologia 46 (4):495-513. (distribution); Gonzalez et al., 2012Gonzalez, V.H., J.S. Ascher & M.S. Engel 2012. A new Stelis (Dolichostelis) from northern Colombia (Hymenoptera: Megachilidae): first records for South America and a synopsis of the bee fauna from the Caribbean region of Colombia. Journal of Natural History 46 (47-48):2919-2934. (distribution); Gonzalez & Griswold, 2013Gonzalez, V.H. & T.L. Griswold 2013. Wool carder bees of the genus Anthidium in the Western Hemisphere (Hymenoptera: Megachilidae): diversity, host plant associations, phylogeny, and biogeography. Zoological Journal of the Linnean Society 168:221-425. (distribution); Guevara et al., 2022Guevara, D.A., R. Ospina-Torres, V.H. Gonzalez 2022. New records of megachilid bees (Hymenoptera: Megachilidae) for Colombia. Revista Peruana de biología 29 (4):1-6. (distribution).
Anthidium loboguerrero Urban, 2004:492, Gonzalez & Griswold, 2013Gonzalez, V.H. & T.L. Griswold 2013. Wool carder bees of the genus Anthidium in the Western Hemisphere (Hymenoptera: Megachilidae): diversity, host plant associations, phylogeny, and biogeography. Zoological Journal of the Linnean Society 168:221-425.:352, Holotype ♂ (DZUP). Synonymized with Anthidium sanguinicaudum Schwarz, 1933 by Gonzalez & Griswold, 2013Gonzalez, V.H. & T.L. Griswold 2013. Wool carder bees of the genus Anthidium in the Western Hemisphere (Hymenoptera: Megachilidae): diversity, host plant associations, phylogeny, and biogeography. Zoological Journal of the Linnean Society 168:221-425.:352.