Priocnemioides unifasciatus californicus Townes, 1957:65, ♂♀. Paratypes 60 ♂♂, 163 ♀♀; Type ♀, Mount diablo, Contra Costa County, Calif., July 10, 1947 (Washington, USNM, 61698, leg. U. N. Lanham). - Krombein, 1958Krombein, K.V. 1958. Family Pompilidae. In: Krombein, K.V. (Ed.). Hymenoptera of America North of Mexico - Synoptic Catalog. Washington: U.S. Department of Agriculture. Agriculture Monograph No. 2. First Supplement, 305 pp. 170-186. (distribution). - As Entypus unifasciatus californicus: - Contreras, 2017Contreras, J.M. 2017. Nuevos registros de caza de Entypus unifasciatus dumosus (Spinola, 1851) (Hymenoptera: Pompilidae) en Chile. Arquivos Entomolóxicos 18:253-258.:256 (prey); Kurczewski et al., 2020Kurczewski, F.E., R.C. West, C. Waichert, K.C. Kissane, D. Ubick & J.P. Pitts 2020. New and unusual host records for North American and South American spider wasps (Hymenoptera: Pompilidae). Zootaxa 4891 (1):1-112. (distribution), 29 (prey); Vanoye-Eligio et al., 2021Vanoye-Eligio, M., M. del C. Gómez-Camal, B. del R. Martín-Canché, M. Rosas-Mejía, J.V. HortaVega & V. Vanoye-Eligio 2021. Current knowledge of the family Pompilidae (Hymenoptera: Vespoidea) in Mexico: diversity and geographical distribution. Zootaxa 5071 (4):505-536. (distribution); Kurczewski et al., 2024Kurczewski, F.E., R.C. West & C. Waichert 2024. New host records for Nearctic and Neotropical spider wasps (Hymenoptera: Pompilidae). Insecta Mundi 1034:1-32. (distribution, hosts [Olios giganteus Keyserling (Sparassidae)]).