Eucerceris pimarum Cockerell & Rohwer in Rohwer, 1908:326, Ferguson, 1981Ferguson, G.R. 1981. Synonymy and distribution records in the genus Eucerceris (Hymenoptera: Philanthidae). Journal of the New York Entomological Society 89 (3):172-183.:176, Holotype ♀ (U.S. Natl. Mus., Washington, D.C.). - 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); Ferguson, 1981Ferguson, G.R. 1981. Synonymy and distribution records in the genus Eucerceris (Hymenoptera: Philanthidae). Journal of the New York Entomological Society 89 (3):172-183. (distribution); Amarante, 2002Amarante, S.T.P. 2002. A synonymic catalog of the neotropical Crabronidae and Sphecidae (Hymenoptera: Apoidea). Arquivos de Zoologia (São Paulo) 37:1-139. (distribution).
Eucerceris apicata Banks, 1915:404, Ferguson, 1981Ferguson, G.R. 1981. Synonymy and distribution records in the genus Eucerceris (Hymenoptera: Philanthidae). Journal of the New York Entomological Society 89 (3):172-183.:176, Holotype ♂ (Mus. Comp. Zool., Cambridge, Massachusetts). - 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 pimarum Cockerell & Rohwer in Rohwer, 1908); Ferguson, 1981Ferguson, G.R. 1981. Synonymy and distribution records in the genus Eucerceris (Hymenoptera: Philanthidae). Journal of the New York Entomological Society 89 (3):172-183.:176 ( listed as synonym of Eucerceris pimarum Cockerell & Rohwer in Rohwer, 1908); Amarante, 2002Amarante, S.T.P. 2002. A synonymic catalog of the neotropical Crabronidae and Sphecidae (Hymenoptera: Apoidea). Arquivos de Zoologia (São Paulo) 37:1-139.:63 ( listed as synonym of Eucerceris pimarum Cockerell & Rohwer in Rohwer, 1908).