Pseudopanurgus nebrascensis timberlakei Michener, 1947:446 - Mitchell, 1960Mitchell, T.B. 1960. Bees of the Eastern United States. Volume I. Technical bulletin (North Carolina Agricultural Experiment Station) 141:1-538.:276 ( listed as synonym of Pseudopanurgus nebrascensis muesebecki Michener, 1951); 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.:1858 ( listed as synonym of Pseudopanurgus nebrascensis muesebecki Michener, 1951).
Pseudopanurgus nebrascensis muesebecki Michener, 1951:1100 - Mitchell, 1960Mitchell, T.B. 1960. Bees of the Eastern United States. Volume I. Technical bulletin (North Carolina Agricultural Experiment Station) 141:1-538. (distribution); Hall & Ascher, 2010Hall, H.G., & J.S. Ascher 2010. Surveys of bees (Hymenoptera: Apoidea: Anthophila) in natural areas of Alachua County in North-Central Florida. The Florida Entomologist 93 (4):609-629. (distribution). - As Protandrena nebrascencis muesebecki: - Pascarella, 2006Pascarella, J.B. 2006. The bees of Florida. . (distribution). - As Pterosarus nebrascensis muesebecki: - 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).