Crocisa lata Cresson, 1878:91, ♂. Holotype ♂, Texas (leg. Belfrage); Linsley, 1939Linsley, E. G. 1939. A revision of the Nearctic Melectinae (Hymenoptera, Anthophoridae). Annals of the Entomological Society of America 32:429-468.:464, Type ♂ (Acad. Nat. Sci. Phila., No. 2486); Snelling & Zavortink, 1984Snelling, R.R. & T.J. Zavortink 1984. A revision of the cleptoparasitic bee genus Ericrocis (Hymenoptera: Anthophoridae). The Wasmann Journal of Biology 42 (1-2):1-26.:7, Holotype ♂ (ANSP). - Cresson, 1879Cresson, E.T. 1879. Catalogue of North American Apidae. Transactions of the American Entomological Society and Proceedings of the Entomological Section of the Academy of Natural Sciences 7:215-232. (distribution); Dalla Torre, 1896Dalla Torre, C.G. 1896. Catalogus Hymenopterorum hucusque descriptorum systematicus et synonymicus, X. Apidae (Anthophila). Sumptibus Guilelmi Engelmann, 1-643. (distribution). - As Ericrocis lata: - Cockerell, 1906Cockerell, T.D.A. 1906. The bees of New Mexico. Transactions of the American Entomological Society 32:289-314. (distribution); Cockerell, 1923Cockerell, T.D.A. 1923. Expedition of the California Academy of Sciences to the Gulf of California in 1921. The bees (I). Proceedings of the California Academy of Sciences ser. 4: v. 12 (7):73-103. (distribution); Linsley, 1939Linsley, E. G. 1939. A revision of the Nearctic Melectinae (Hymenoptera, Anthophoridae). Annals of the Entomological Society of America 32:429-468. (distribution); Mitchell, 1962Mitchell, T.B. 1962. Bees of the Eastern United States. Volume II. Technical bulletin (North Carolina Agricultural Experiment Station) 152:1-557. (distribution); Krombein et al., 1979Krombein, K.V., P.D. Hurd, D.R. Smith & B.D. Burks 1979. Catalog of Hymenoptera in America North of Mexico. Volume 2. Apocrita (Aculeata). Smithsonian Institution Press, Washington D.C. 1199-2209. (distribution); Snelling & Zavortink, 1984Snelling, R.R. & T.J. Zavortink 1984. A revision of the cleptoparasitic bee genus Ericrocis (Hymenoptera: Anthophoridae). The Wasmann Journal of Biology 42 (1-2):1-26. (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); Pascarella, 2006Pascarella, J.B. 2006. The bees of Florida. . (distribution); Bossert et al., 2020Bossert, S., R.S. Copeland, T.J.L. Sless, M.G. Branstetter, J.P. Gillung, S.G. Brady, B.N. Danforth, J. Policarová & J. Straka 2020. Phylogenomic and morphological reevaluation of the bee tribes Biastini, Neolarrini, and Townsendiellini (Hymenoptera: Apidae) with description of three new species of Schwarzia. Insect Systematics and Diversity 4 (6):1-29. (distribution); Esperanza de Pedro, 2021Esperanza de Pedro, D. 2021. . :. (distribution); Nava-Bolaños & Osorio-Olvera, 2022Nava-Bolaños, A. & L. Osorio-Olvera 2022. Estado del arte del conocimiento de biodiversidad de los polinizadores de México. Revista Mexicana de Biodiversidad 93:1-77. (distribution).
Ericrocis rugosa Fox, 1893:19, ♂. ♂, Santa Maria, L. Cal., May (leg. Haines); Linsley, 1939Linsley, E. G. 1939. A revision of the Nearctic Melectinae (Hymenoptera, Anthophoridae). Annals of the Entomological Society of America 32:429-468.:465, Type ♂ (Acad. Nat. Sci. Phila., No. 277); Snelling & Zavortink, 1984Snelling, R.R. & T.J. Zavortink 1984. A revision of the cleptoparasitic bee genus Ericrocis (Hymenoptera: Anthophoridae). The Wasmann Journal of Biology 42 (1-2):1-26.:7, Holotype ♂ (CAS). Synonymized with Ericrocis lata (Cresson, 1878) by Snelling & Zavortink, 1984Snelling, R.R. & T.J. Zavortink 1984. A revision of the cleptoparasitic bee genus Ericrocis (Hymenoptera: Anthophoridae). The Wasmann Journal of Biology 42 (1-2):1-26.:7. - Cockerell, 1899Cockerell, T.D.A. 1899. Catálogo de las Abejas de Mexico. Biblioteca Agricola de las Secretaria de Fomento, Mexico, 1-20. (distribution); Cockerell, 1923Cockerell, T.D.A. 1923. Expedition of the California Academy of Sciences to the Gulf of California in 1921. The bees (I). Proceedings of the California Academy of Sciences ser. 4: v. 12 (7):73-103. (distribution); Linsley, 1939Linsley, E. G. 1939. A revision of the Nearctic Melectinae (Hymenoptera, Anthophoridae). Annals of the Entomological Society of America 32:429-468. (distribution).
Ericrocis arizonensis Baker, 1906:143, Snelling & Zavortink, 1984Snelling, R.R. & T.J. Zavortink 1984. A revision of the cleptoparasitic bee genus Ericrocis (Hymenoptera: Anthophoridae). The Wasmann Journal of Biology 42 (1-2):1-26.:7, Holotype ♂ (USNM). Synonymized with Ericrocis lata (Cresson, 1878) by Snelling & Zavortink, 1984Snelling, R.R. & T.J. Zavortink 1984. A revision of the cleptoparasitic bee genus Ericrocis (Hymenoptera: Anthophoridae). The Wasmann Journal of Biology 42 (1-2):1-26.:7. - Cockerell, 1923Cockerell, T.D.A. 1923. Expedition of the California Academy of Sciences to the Gulf of California in 1921. The bees (I). Proceedings of the California Academy of Sciences ser. 4: v. 12 (7):73-103. (distribution); Cockerell, 1925Cockerell, T.D.A. 1925. Bees in the collection of California Academy of Sciences. Proceedings of the California Academy of Sciences ser. 4: v. 14 (11):185-215. (distribution); Linsley, 1939Linsley, E. G. 1939. A revision of the Nearctic Melectinae (Hymenoptera, Anthophoridae). Annals of the Entomological Society of America 32:429-468. (distribution); Krombein et al., 1979Krombein, K.V., P.D. Hurd, D.R. Smith & B.D. Burks 1979. Catalog of Hymenoptera in America North of Mexico. Volume 2. Apocrita (Aculeata). Smithsonian Institution Press, Washington D.C. 1199-2209. (distribution).
Ericrocis melectoides Baker, 1906:144, Snelling & Zavortink, 1984Snelling, R.R. & T.J. Zavortink 1984. A revision of the cleptoparasitic bee genus Ericrocis (Hymenoptera: Anthophoridae). The Wasmann Journal of Biology 42 (1-2):1-26.:7, Holotype ♀ (USNM). Synonymized with Ericrocis lata (Cresson, 1878) by Snelling & Zavortink, 1984Snelling, R.R. & T.J. Zavortink 1984. A revision of the cleptoparasitic bee genus Ericrocis (Hymenoptera: Anthophoridae). The Wasmann Journal of Biology 42 (1-2):1-26.:7. - Cockerell, 1923Cockerell, T.D.A. 1923. Expedition of the California Academy of Sciences to the Gulf of California in 1921. The bees (I). Proceedings of the California Academy of Sciences ser. 4: v. 12 (7):73-103. (distribution); Krombein et al., 1979Krombein, K.V., P.D. Hurd, D.R. Smith & B.D. Burks 1979. Catalog of Hymenoptera in America North of Mexico. Volume 2. Apocrita (Aculeata). Smithsonian Institution Press, Washington D.C. 1199-2209.:2176 ( listed as synonym of Ericrocis arizonensis Baker, 1906).
Ericrocis rossi Linsley, 1939:467, ♂♀. Allotype ♂, Triunfo, Lower California, July 13, 1938 (Calif. Acad. Sci. Ent., No. 4776, leg. E.S. Ross & A.E. Michelbacher); Holotype ♀, 10 miles northwest of San Barola, Lower California, July 13, 1938 (Calif. Acad. Sci. Ent., No. 4775, leg. E.S. Ross & A.E. Michelbacher); Snelling & Zavortink, 1984Snelling, R.R. & T.J. Zavortink 1984. A revision of the cleptoparasitic bee genus Ericrocis (Hymenoptera: Anthophoridae). The Wasmann Journal of Biology 42 (1-2):1-26.:7, Holotype ♀ (CAS). Synonymized with Ericrocis lata (Cresson, 1878) by Snelling & Zavortink, 1984Snelling, R.R. & T.J. Zavortink 1984. A revision of the cleptoparasitic bee genus Ericrocis (Hymenoptera: Anthophoridae). The Wasmann Journal of Biology 42 (1-2):1-26.:7.