Eucerceris arizonensis Scullen, 1939:20, 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.:175, Holotype ♀ (Univ. of Kansas, Lawrence). - 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.:1739 ( listed as synonym of Eucerceris lacunosa lacunosa Scullen, 1939); 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.:175 ( listed as synonym of Eucerceris lacunosa Scullen, 1939); 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.:62 ( listed as synonym of Eucerceris lacunosa Scullen, 1939).
Eucerceris lacunosa Scullen, 1939:19, 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.:175, Holotype ♂ (Univ. of Kansas, Lawrence). - 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); Nava-Bolaños & Osorio-Olvera, 2022Nava-Bolaños, A. & L. Osorio-Olvera 2022. Estado del arte del conocimiento de biodiversidad de los polinizadores de México. Revista Mexicana de Biodiversidad 93:1-77. (distribution). - As Eucerceris lacunosa lacunosa: - 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); 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.:62 (listed).
Eucerceris lacunosa sabinasae Scullen, 1968:36, 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.:175, Holotype ♂ (Univ. of California, Davis). Synonymized with Eucerceris lacunosa Scullen, 1939 by 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.:175. - 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); 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.:62 ( listed as synonym of Eucerceris lacunosa Scullen, 1939).