Prosacantha minutissima Ashmead, 1887:117, ♀.Florida; Ashmead, 1893Ashmead, W.H. 1893. A monograph of the North American Proctotrypidae. Bulletin of the United States National Museum 45:1-472.:202, Holotype ♀ (Coll. Ashmead); Fouts, 1948Fouts, R.M. 1948. Parasitic wasps of the genus Trimorus in North America. Proceedings of the United States National Museum 98 (No. 3225):91-148.:148, Type ♀ (U.S.N.M., No. 24522); Masner & Muesebeck, 1968Masner, L. & C.F.W. Muesebeck 1968. The Types of Proctotrupoidea (Hymenoptera) in the United States National Museum. 270:1-143.:53, Holotype ♀ (USNM, no. 24522). - As Hoplogryon minutissimus: - Ashmead, 1893Ashmead, W.H. 1893. A monograph of the North American Proctotrypidae. Bulletin of the United States National Museum 45:1-472. (distribution); Dalla Torre, 1898Dalla Torre, C.G. 1898. Catalogus Hymenopterorum hucusque descriptorum systematicus et synonymicus, V. Chalcididae et Proctotrupidae. Sumptibus Guilelmi Engelmann, VII + 598. (distribution). - As Trimorus minutissimus: - 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 1. Symphyta and Apocrita (Parasitica). Smithsonian Institution Press, Washington D.C. 1-1198. (distribution).