Andrena illinoiensis Robertson, 1891:54, ♂♀. 13 ♀♀, 15 ♂♂, Carlinville, Ill., April 2d to May 3d (leg. Robertson). - Dalla Torre, 1896Dalla Torre, C.G. 1896. Catalogus Hymenopterorum hucusque descriptorum systematicus et synonymicus, X. Apidae (Anthophila). Sumptibus Guilelmi Engelmann, 1-643. (distribution); 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). - As Protandrena illinoiensis: - Pascarella, 2006Pascarella, J.B. 2006. The bees of Florida. . (distribution).
Andrena salicinella Cockerell, 1895:4, ♀. ♀, Las Cruces, New Mexico, May, 1895 (leg. Cockerell). - Cockerell, 1899Cockerell, T.D.A. 1899. The bees of Kansas. Entomological News 10:3-4. (distribution); Cockerell, 1906Cockerell, T.D.A. 1906. The bees of New Mexico. Transactions of the American Entomological Society 32:289-314. (distribution); Mitchell, 1960Mitchell, T.B. 1960. Bees of the Eastern United States. Volume I. Technical bulletin (North Carolina Agricultural Experiment Station) 141:1-538.:162 ( listed as synonym of Andrena illinoiensis Robertson, 1891); 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.:1808 ( listed as synonym of Andrena illinoiensis Robertson, 1891).
Andrena placitae Cockerell, 1903:215 - Cockerell, 1906Cockerell, T.D.A. 1906. The bees of New Mexico. Transactions of the American Entomological Society 32:289-314. (distribution); Mitchell, 1960Mitchell, T.B. 1960. Bees of the Eastern United States. Volume I. Technical bulletin (North Carolina Agricultural Experiment Station) 141:1-538.:162 ( listed as synonym of Andrena illinoiensis Robertson, 1891); 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.:1808 ( listed as synonym of Andrena illinoiensis Robertson, 1891).
Andrena vegana Viereck & Cockerell, 1914:17, ♀. Type ♀, Las Vegas, New Mexico, May 4, 1903 (U.S.N.M., No. 18133, leg. Cockerell). - 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.:1808 ( listed as synonym of Andrena illinoiensis Robertson, 1891).