Melissodes confusa Robertson, 1894:458 - LaBerge, 1961LaBerge, W.E. 1961. A revision of the bees of the genus Melissodes in North and Central America. Part III. (Hymenoptera, Apidae). The University of Kansas Science Bulletin 42 (5):283-663.:448 ( listed as synonym of Melissodes coreopsis Robertson, 1905); Mitchell, 1962Mitchell, T.B. 1962. Bees of the Eastern United States. Volume II. Technical bulletin (North Carolina Agricultural Experiment Station) 152:1-557.:286 ( listed as synonym of Melissodes coreopsis Robertson, 1905).
Melissodes coreopsis Robertson, 1905:368, Lectotype ♀ (Illniois Natural History Survey, Urbana), designated by LaBerge, 1961LaBerge, W.E. 1961. A revision of the bees of the genus Melissodes in North and Central America. Part III. (Hymenoptera, Apidae). The University of Kansas Science Bulletin 42 (5):283-663.:452. - Cockerell, 1906Cockerell, T.D.A. 1906. The North American bees of the family Anthophoridae. Transactions of the American Entomological Society 32 (1):63-116. (distribution); Cockerell, 1913Cockerell, T.D.A. 1913. Names applied to the Eucerine bees of North America. Proceedings of the United States National Museum 43:261-273. (distribution); Lutz & Cockerell, 1920Lutz, F.E. & T.D.A. Cockerell 1920. Notes on the distribution and bibliography of North American bees of the families, Apidae, Meliponidae, Bombidae, Euglossidae, and Anthophoridae. Bull. Amer. Mus. Nat. Hist 42 (15):491-641. (distribution); LaBerge, 1961LaBerge, W.E. 1961. A revision of the bees of the genus Melissodes in North and Central America. Part III. (Hymenoptera, Apidae). The University of Kansas Science Bulletin 42 (5):283-663. (distribution); Mitchell, 1962Mitchell, T.B. 1962. Bees of the Eastern United States. Volume II. Technical bulletin (North Carolina Agricultural Experiment Station) 152:1-557. (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); 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).
Melissodes agilis semiagilis Cockerell, 1906:364, ♂. Holotype ♂, Fedor, Texas, May 29 (leg. Birkmann). Synonymized with Melissodes coreopsis Robertson, 1905 by LaBerge, 1961LaBerge, W.E. 1961. A revision of the bees of the genus Melissodes in North and Central America. Part III. (Hymenoptera, Apidae). The University of Kansas Science Bulletin 42 (5):283-663.:448. - Cockerell, 1907Cockerell, T.D.A. 1907. The bees of Boulder County, Colorado. University of Colorado Studies 4:239-259. (distribution); Cockerell, 1913Cockerell, T.D.A. 1913. Names applied to the Eucerine bees of North America. Proceedings of the United States National Museum 43:261-273. (distribution); Mitchell, 1962Mitchell, T.B. 1962. Bees of the Eastern United States. Volume II. Technical bulletin (North Carolina Agricultural Experiment Station) 152:1-557.:286 ( listed as synonym of Melissodes coreopsis Robertson, 1905); 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.:2146 ( listed as synonym of Melissodes coreopsis Robertson, 1905).
Melissodes confusiformis Cockerell, 1906:366, ♀. Holotype ♀, Fedor, Texas, May 6, 1902 (leg. Birkmann); LaBerge, 1961LaBerge, W.E. 1961. A revision of the bees of the genus Melissodes in North and Central America. Part III. (Hymenoptera, Apidae). The University of Kansas Science Bulletin 42 (5):283-663.:452, Holotype ♀ (Natural History Museum of the University of Colorado at Boulder). Synonymized with Melissodes coreopsis Robertson, 1905 by LaBerge, 1961LaBerge, W.E. 1961. A revision of the bees of the genus Melissodes in North and Central America. Part III. (Hymenoptera, Apidae). The University of Kansas Science Bulletin 42 (5):283-663.:448. - Cockerell, 1907Cockerell, T.D.A. 1907. The bees of Boulder County, Colorado. University of Colorado Studies 4:239-259. (distribution); Cockerell, 1910Cockerell, T.D.A. 1910. Some bees from Eldora, Colorado. Psyche 17 (6):244-247. (distribution); Cockerell, 1913Cockerell, T.D.A. 1913. Names applied to the Eucerine bees of North America. Proceedings of the United States National Museum 43:261-273. (distribution); Cockerell, 1914Cockerell, T.D.A. 1914. Bees visiting Helianthus. The Canadian Entomologist 46 (12):409-415. (distribution); Cockerell, 1919Cockerell, T.D.A. 1919. The bees of Gold Hill, Colorado. The Canadian Entomologist 51:271-273. (distribution); Lutz & Cockerell, 1920Lutz, F.E. & T.D.A. Cockerell 1920. Notes on the distribution and bibliography of North American bees of the families, Apidae, Meliponidae, Bombidae, Euglossidae, and Anthophoridae. Bull. Amer. Mus. Nat. Hist 42 (15):491-641. (distribution); Mitchell, 1962Mitchell, T.B. 1962. Bees of the Eastern United States. Volume II. Technical bulletin (North Carolina Agricultural Experiment Station) 152:1-557.:286 ( listed as synonym of Melissodes coreopsis Robertson, 1905); 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.:2146 ( listed as synonym of Melissodes coreopsis Robertson, 1905).
Melissodes helianthophila Cockerell, 1914:361, ♂. ♂, Boulder, Colorado, June 16, 1914 (leg. Cockerell); LaBerge, 1961LaBerge, W.E. 1961. A revision of the bees of the genus Melissodes in North and Central America. Part III. (Hymenoptera, Apidae). The University of Kansas Science Bulletin 42 (5):283-663.:452, Holotype ♂ (Coll. Timberlake, Citrus Experiment Station, Riverside, California). Synonymized with Melissodes coreopsis Robertson, 1905 by LaBerge, 1961LaBerge, W.E. 1961. A revision of the bees of the genus Melissodes in North and Central America. Part III. (Hymenoptera, Apidae). The University of Kansas Science Bulletin 42 (5):283-663.:448. - Lutz & Cockerell, 1920Lutz, F.E. & T.D.A. Cockerell 1920. Notes on the distribution and bibliography of North American bees of the families, Apidae, Meliponidae, Bombidae, Euglossidae, and Anthophoridae. Bull. Amer. Mus. Nat. Hist 42 (15):491-641. (distribution); Mitchell, 1962Mitchell, T.B. 1962. Bees of the Eastern United States. Volume II. Technical bulletin (North Carolina Agricultural Experiment Station) 152:1-557.:286 ( listed as synonym of Melissodes coreopsis Robertson, 1905); 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.:2146 ( listed as synonym of Melissodes coreopsis Robertson, 1905).