Prosopis floridanus Robertson, 1893:273 - As Hylaeus floridanus: - Mitchell, 1960Mitchell, T.B. 1960. Bees of the Eastern United States. Volume I. Technical bulletin (North Carolina Agricultural Experiment Station) 141:1-538. (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); Pascarella, 2006Pascarella, J.B. 2006. The bees of Florida. . (distribution). - As Prosopis floridana: - Dalla Torre, 1896Dalla Torre, C.G. 1896. Catalogus Hymenopterorum hucusque descriptorum systematicus et synonymicus, X. Apidae (Anthophila). Sumptibus Guilelmi Engelmann, 1-643. (distribution); Metz, 1911Metz, C.W. 1911. A revision of the genus Prosopis in North America. Transactions of the American Entomological Society 37:85-156.:121 ( listed as synonym of Prosopis modestus (Say, 1837)).
Prosopis eulophi Robertson, 1905:236 - Metz, 1911Metz, C.W. 1911. A revision of the genus Prosopis in North America. Transactions of the American Entomological Society 37:85-156.:122 ( listed as synonym of Prosopis modestus (Say, 1837)); Mitchell, 1960Mitchell, T.B. 1960. Bees of the Eastern United States. Volume I. Technical bulletin (North Carolina Agricultural Experiment Station) 141:1-538.:77 ( listed as synonym of Hylaeus floridanus (Robertson, 1893)); 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.:1764 ( listed as synonym of Hylaeus floridanus (Robertson, 1893)). - As Hylaeus eulophi: - Pascarella, 2006Pascarella, J.B. 2006. The bees of Florida. . ( listed as synonym of Hylaeus floridanus (Robertson, 1893)).
Hylaeus packardi Mitchell, 1951:244 - Mitchell, 1960Mitchell, T.B. 1960. Bees of the Eastern United States. Volume I. Technical bulletin (North Carolina Agricultural Experiment Station) 141:1-538. (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.:1764 ( listed as synonym of Hylaeus floridanus (Robertson, 1893)); Pascarella, 2006Pascarella, J.B. 2006. The bees of Florida. . ( listed as synonym of Hylaeus floridanus (Robertson, 1893)).