- As Protandrena abdominalis:
Calliopsis abdominalis Cresson, 1878:68, ♂♀. 4 ♂♀, Texas (leg. Heiligbrodt). - 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); Crawford, 1915Crawford, J.C. 1915. Descriptions of new Hymenoptera, NO. 9. Proceedings of the United States National Museum 48 (No. 2087):577-587. (distribution); Mitchell, 1960Mitchell, T.B. 1960. Bees of the Eastern United States. Volume I. Technical bulletin (North Carolina Agricultural Experiment Station) 141:1-538.:270 ( listed as synonym of Pseudopanurgus abdominalis tricolor (Cockerell, 1897)); Timberlake, 1969Timberlake, P.H. 1969. Metapsaenythia, a new panurgine bee genus (Hymenoptera, Andrenidae). Entomological News 80 (4):89-92. (distribution). - As Metapsaenythia abdominalis abdominalis: - 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).
Calliopsis tricolor Cockerell, 1897:151, ♀. ♀, Near Philadelphia, Pa. (leg. Dr. Skinner). - As Metapsaenythia abdominalis tricolor: - Timberlake, 1969Timberlake, P.H. 1969. Metapsaenythia, a new panurgine bee genus (Hymenoptera, Andrenidae). Entomological News 80 (4):89-92. (distribution). - As Pseudopanurgus abdominalis tricolor: - Mitchell, 1960Mitchell, T.B. 1960. Bees of the Eastern United States. Volume I. Technical bulletin (North Carolina Agricultural Experiment Station) 141:1-538. (distribution).
Camptopoeum semirufum Cockerell, 1937:1, ♀. ♀, Texas: Brazos County, June 22, 1921 (leg. Robert K. Fletcher). - Timberlake, 1969Timberlake, P.H. 1969. Metapsaenythia, a new panurgine bee genus (Hymenoptera, Andrenidae). Entomological News 80 (4):89-92.:90 ( listed as synonym of Metapsaenythia abdominalis abdominalis (Cresson, 1878)); 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.:1859 ( listed as synonym of Metapsaenythia abdominalis abdominalis (Cresson, 1878)).