Bethylus armiferus Say, 1828:80, sex not indicated.Indiana; Ashmead, 1893Ashmead, W.H. 1893. A monograph of the North American Proctotrypidae. Bulletin of the United States National Museum 45:1-472.:35, Holotype ♀ (Museum Berlin); Ashmead, 1893Ashmead, W.H. 1893. A monograph of the North American Proctotrypidae. Bulletin of the United States National Museum 45:1-472.:35, Holotype ♂ (National Museum and Coll. American Ent. Soc.). - Cresson, 1862Cresson, E.T. 1862. Catalogue of the described species of North American Hymenoptera (Continued from page 211.). Proceedings of the Entomological Society of Philadelphia 1 (8):227-238. (distribution); Ashmead, 1887Ashmead, W.H. 1887. Studies on the North American Proctotrupidae, with descriptions of new species from Florida. (Part I.). Entomologica Americana 3:73-76, 97-100, 117-119. (distribution). - As Pristocera armifera: - 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); Krombein, 1963Krombein, K.V. 1963. Natural history of Plummers Island, Maryland. XVII. Annotated list of the wasps (Hymenoptera: Bethyloidea, Scolioidea, Vespoidea, Pompiloidea, Sphecoidea). Proceedings of the Biological Society of Washington 76:255-280. (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).
Scleroderma thoracica Westwood, 1839:167 - 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.:1215 ( listed as synonym of Pristocera armifera (Say, 1828)).
Scleroderma contracta Westwood, 1839:169, Ashmead, 1893Ashmead, W.H. 1893. A monograph of the North American Proctotrypidae. Bulletin of the United States National Museum 45:1-472.:35, Type (Museum Berlin). - Ashmead, 1893Ashmead, W.H. 1893. A monograph of the North American Proctotrypidae. Bulletin of the United States National Museum 45:1-472.:34 ( listed as synonym of Pristocera armifera (Say, 1828)); 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.:1215 ( listed as synonym of Pristocera armifera (Say, 1828)).
Epyris læviventris Cresson, 1872:193, ♂. 2 ♂♂, Texas (leg. Belfrage). - Ashmead, 1887Ashmead, W.H. 1887. Studies on the North American Proctotrupidae, with descriptions of new species from Florida. (Part I.). Entomologica Americana 3:73-76, 97-100, 117-119. (distribution); Ashmead, 1893Ashmead, W.H. 1893. A monograph of the North American Proctotrypidae. Bulletin of the United States National Museum 45:1-472.:34 ( listed as synonym of Pristocera armifera (Say, 1828)); 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.:1215 ( listed as synonym of Pristocera armifera (Say, 1828)).
Epyris reticulatus Kieffer, 1904:527, ♂. 2 ♂♂, Texas (leg. Belfrage). - 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.:1215 ( listed as synonym of Pristocera armifera (Say, 1828)).