Didineis nodosa Fox, 1894:127, ♂.State of Washington. - Handlirsch, 1895Handlirsch, A. 1895. Nachträge und Schlußwort zur Monographie der mit Nysson und Bembex verwandten Grabwespen. Sitzber. Akad. Wiss. Wien Abt. 1 104:801-1079. (distribution); Dalla Torre, 1897Dalla Torre, C.G. 1897. Catalogus hymenopterorum hucusque descriptorum systematicus et synonymicus. Volumen VIII: Fossores (Sphegidae). Breitkopf & Härtel, Leipzig. 1-749. (distribution); Bradley, 1920Bradley, J.C. 1920. Descriptions, records and notes on North American Nyssonidae (Hymenoptera). Transactions of the American Entomological Society 46 (2):113-132. (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).
Didineis sanctacrucae Bradley, 1920:129, ♀. Holotype ♀, Santa Cruz Beach, California, May, 1907 (Cornell University, no. 520.1, leg. Bradley). - 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.:1686 ( listed as synonym of Didineis nodosa Fox, 1894).
Didineis nodosa clypeata Malloch & Rohwer, 1930:6 - 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.:1686 ( listed as synonym of Didineis nodosa Fox, 1894).