Philanthus zonata Say, 1823:80 - As Eucerceris zonata: - 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 Eucerceris zonatus: - Cresson, 1872Cresson, E.T. 1872. Hymenoptera Texana. Transactions of the American Entomological Society 4:153-292. (distribution); Cockerell, 1898Cockerell, T.D.A. 1898. Contributions to the entomology of New Mexico. Proc. Davenport Acad. nat. Sci. 7:139-148. (distribution); Viereck & Cockerell, 1904Viereck, H.L. & Cockerell, T.D.A. 1904. The Philanthidae of New Mexico. - I. Journal of the New York Entomological Society 12 (2):84-88. (distribution). - As Philanthus zonatus: - Cresson, 1862Cresson, E.T. 1862. Catalogue of the described species of North American Hymenoptera (Continued from page 211.). Proceedings of the Entomological Society of Philadelphia 1 (8):227-238. (distribution).
Eucerceris laticeps Cresson, 1865:107, ♂♀. 2 ♀♀, 1 ♂, Massachusetts (Ent. Soc. Philad., leg. Ridings). - 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.:1740 ( listed as synonym of Eucerceris zonata (Say, 1823)).