Pterochilus laticeps Cresson, 1872:244, ♂♀. 3 ♂♀, Texas (leg. Belfrage); Bohart, 1940Bohart, R.M. 1940. A revision of the North American species of Pterocheilus and notes on related genera (Hymenoptera, Vespidae). Annals of the Entomological Society of America 33:162-208.:191, Type (A. N. S. P.); Bohart, 1948Bohart, R.M. 1948. Contributions toward a knowledge of the insect fauna of Lower California. No. 9, Hymenoptera: Eumenidae. Proceedings of the California Academy of Sciences ser. 4: v. 24 (9):313-336.:317, Type (A.N.S.P.). - As Pterocheilus laticeps: - Dalla Torre, 1894Dalla Torre, C.G. 1894. Catalogus Hymenopterorum hucusque descriptorum systematicus et synonymicus, IX. Vespidae (Diploptera). Guilelmi Engelmann, 181. (distribution); Bohart, 1940Bohart, R.M. 1940. A revision of the North American species of Pterocheilus and notes on related genera (Hymenoptera, Vespidae). Annals of the Entomological Society of America 33:162-208. (distribution); Bohart, 1948Bohart, R.M. 1948. Contributions toward a knowledge of the insect fauna of Lower California. No. 9, Hymenoptera: Eumenidae. Proceedings of the California Academy of Sciences ser. 4: v. 24 (9):313-336. (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).
Odynerus leucospilus Cameron, 1909:133, ♂. Holotype ♂, Prescott, Arizona (leg. Oslar); Bohart, 1965Bohart, R.M. 1965. Synonymy of North American Odynerini described by Peter Cameron. The Pan-Pacific Entomologist 41 (2):107-113.:110, Holotype ♂ (BMNH). - Bohart, 1965Bohart, R.M. 1965. Synonymy of North American Odynerini described by Peter Cameron. The Pan-Pacific Entomologist 41 (2):107-113.:110 ( listed as synonym of Pterocheilus laticeps (Cresson, 1872)); 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.:1475 ( listed as synonym of Pterocheilus laticeps (Cresson, 1872)).