Lyrops péptica Say, 1837:371, ♂♀. ♂, ♀, Indiana, Neotype ♂ (Amer. Mus. Nat. Hist.), designated by Banks, 1942Banks, N. 1942. Notes on the United States species of Tachytes. Bulletin of the Museum of Comparative Zoology 89:395-436.:421. - 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). - As Lyrops pepticus: - As Tachytes pepticus: - Fox, 1892Fox, W.J. 1892. Monograph of the North American species of Tachytes. Transactions of the American Entomological Society 19:234-252. (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); Banks, 1942Banks, N. 1942. Notes on the United States species of Tachytes. Bulletin of the Museum of Comparative Zoology 89:395-436. (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).
Tachytes sericatus Cresson, 1872:216, ♂♀. 1 ♂, 1 ♀, Texas (leg. Belfrage). - Fox, 1892Fox, W.J. 1892. Monograph of the North American species of Tachytes. Transactions of the American Entomological Society 19:234-252. (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); Banks, 1942Banks, N. 1942. Notes on the United States species of Tachytes. Bulletin of the Museum of Comparative Zoology 89:395-436. (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.:1624 ( listed as synonym of Tachytes pepticus (Say, 1837)).
Tachytes fulviventris inferioris Banks, 1942:422, sex not indicated. Holotype ♂ (M.C.Z., no. 25695). - Banks, 1942Banks, N. 1942. Notes on the United States species of Tachytes. Bulletin of the Museum of Comparative Zoology 89:395-436. (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.:1625 ( listed as synonym of Tachytes pepticus (Say, 1837)).