Stelis louisæ Cockerell, 1911:247, ♂. Holotype ♂, Mound, Louisiana, May 12, 1905 (U.S.N.M., No. 13533, leg. C.R. Jones); Parker & Bohart, 1979Parker, F.D. & G.E. Bohart 1979. Dolichostelis, a new genus of parasitic bees (Hymenoptera: Megachilidae). Journal of the Kansas Entomological Society 52 (1):138-153.:146, Holotype ♂ (U.S.N.M., #13533). Synonymized with Stelis costalis costalis Cresson, 1872 by Mitchell, 1962Mitchell, T.B. 1962. Bees of the Eastern United States. Volume II. Technical bulletin (North Carolina Agricultural Experiment Station) 152:1-557.:37. - Cockerell, 1911Cockerell, T.D.A. 1911. Bees in the collection of the United States National Museum. 2. Proceedings of the United States National Museum 40 (1818):241-264. (distribution); Michener, 1947Michener, C.D. 1947. Bees of a limited area in southern Mississippi (Hymenoptera; Apoidea). The American Midland Naturalist 38 (2):443-455. (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.:2000 ( listed as synonym of Stelis costalis costalis Cresson, 1872); Pascarella, 2006Pascarella, J.B. 2006. The bees of Florida. . (distribution); Hall & Ascher, 2010Hall, H.G., & J.S. Ascher 2010. Surveys of bees (Hymenoptera: Apoidea: Anthophila) in natural areas of Alachua County in North-Central Florida. The Florida Entomologist 93 (4):609-629. (distribution); Hall & Ascher, 2011Hall, H.G., & J.S. Ascher 2011. Surveys of wild bees (Hymenoptera: Apoidea: Anthophila) in organic farms of Alachua County in north-central Florida. The Florida Entomologist 94 (3):539-552. (distribution); Gonzalez et al., 2012Gonzalez, V.H., J.S. Ascher & M.S. Engel 2012. A new Stelis (Dolichostelis) from northern Colombia (Hymenoptera: Megachilidae): first records for South America and a synopsis of the bee fauna from the Caribbean region of Colombia. Journal of Natural History 46 (47-48):2919-2934. (distribution); Owens et al., 2018Owens, B.E., L. Allain, E.C. van Gorder, J.L. Bossart & C.E. Carlton 2018. The bees (Hymenoptera: Apoidea) of Louisiana: An updated, annotated checklist. Proceedings of the Entomological Society of Washington 120 (2):272-307. (distribution); Nava-Bolaños & Osorio-Olvera, 2022Nava-Bolaños, A. & L. Osorio-Olvera 2022. Estado del arte del conocimiento de biodiversidad de los polinizadores de México. Revista Mexicana de Biodiversidad 93:1-77. (distribution). - As Dolichostelis louisae: - Parker & Bohart, 1979Parker, F.D. & G.E. Bohart 1979. Dolichostelis, a new genus of parasitic bees (Hymenoptera: Megachilidae). Journal of the Kansas Entomological Society 52 (1):138-153. (distribution), 146 (comb. nov.); Pascarella et al., 1999Pascarella, J.B., Waddington, K.D. & Neal, P.R. 1999. The Bee Fauna (Hymenoptera: Apoidea) of Everglades National Park, Florida and adjacent areas: Distribution, Phenology, and Biogeography. Journal of the Kansas Entomological Society 72 (1):32-45. (distribution).
Stelis floridana Graenicher, 1928:282, ♂♀. Type ♀, Homestead, Dade County, Fla.. Synonymized with Dolichostelis louisae (Cockerell, 1911) by Parker & Bohart, 1979Parker, F.D. & G.E. Bohart 1979. Dolichostelis, a new genus of parasitic bees (Hymenoptera: Megachilidae). Journal of the Kansas Entomological Society 52 (1):138-153.:146. - Pascarella, 2006Pascarella, J.B. 2006. The bees of Florida. . ( listed as synonym of Stelis louisae Cockerell, 1911). - As Stelis costalis floridana: - Mitchell, 1962Mitchell, T.B. 1962. Bees of the Eastern United States. Volume II. Technical bulletin (North Carolina Agricultural Experiment Station) 152:1-557. (distribution), 38 (comb. nov.); 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).