Colletes spiloptera Cockerell, 1917:363, ♂. Type ♂, Aug. Busck (U. S. National Museum, leg. April 20, 1912), Lectotype ♂ (USNM), designated by Moure & Urban, 2002Moure, J.S. & D. Urban 2002. Catálogo de Apoidea de Região Neotropical (Hymenoptera, Colletidae). III. Colletini. Revista Brasileira de Entomologia 19 (1):1-30.:20. - Schwarz, 1934Schwarz, H.F. 1934. The solitary bees of Barro Colorado Island, Canal Zone. American Museum Novitates 722:1-24. (distribution); Michener, 1954Michener, C.D. 1954. Bees of Panamá. Bulletin of the American Museum of Natural History 104 (1):1-176. (distribution); Ruíz-Cancino & Coronado-Blanco, 2002Ruíz-Cancino, E. & J.M. Coronado-Blanco 2002. Artrópodos terrestres de los estados de Tamaulipas y Nuevo León, México. Serie Publicaciones Cientificas No. 4:1-376. (distribution). - As Colletes spilopterus: - Moure & Urban, 2002Moure, J.S. & D. Urban 2002. Catálogo de Apoidea de Região Neotropical (Hymenoptera, Colletidae). III. Colletini. Revista Brasileira de Entomologia 19 (1):1-30. (distribution).
Colletes maculipennis Friese, 1921:77, 83, ♂. 4 ♂♂, San José de Costa Rica, 1. Juli 1920 (leg. Schmidt). - Friese, 1925Friese, H. 1925. Neue neotropische Bienenarten, zugleich II. Nachtrag zur Bienenfauna von Costa Rica (Hym.). Stettiner Entomologische Zeitung 86 (2):1-41. (distribution); Schwarz, 1934Schwarz, H.F. 1934. The solitary bees of Barro Colorado Island, Canal Zone. American Museum Novitates 722:1-24.:2 ( listed as synonym of Colletes spiloptera Cockerell, 1917); Moure & Urban, 2002Moure, J.S. & D. Urban 2002. Catálogo de Apoidea de Região Neotropical (Hymenoptera, Colletidae). III. Colletini. Revista Brasileira de Entomologia 19 (1):1-30.:20 ( listed as synonym of Colletes spilopterus Cockerell, 1917).