Melissodes bimaculata morrilli Cockerell, 1918:29, ♀. ♀, Tlahualilo, Durango, Mexico, Sept. 2, 1904 (leg. A.W. Morrill); LaBerge, 1956LaBerge, W.E. 1956. A revision of the bees of the genus Melissodes in North and Central America. Part I. (Hymenoptera, Apidae). The University of Kansas Science Bulletin 37 (2):911-1194.:1101, Holotype ♀ (U. S. National Museum, No. 22918). - 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). - As Melissodes morrilli: - LaBerge, 1956LaBerge, W.E. 1956. A revision of the bees of the genus Melissodes in North and Central America. Part I. (Hymenoptera, Apidae). The University of Kansas Science Bulletin 37 (2):911-1194. (distribution); Estrada de Léon & Ayala Barajas, 1995Estrada de Léon, M. & R. Ayala Barajas 1995. Abejas silvestres (Hymenoptera: Apoidea) de la Sierra del Tigre, Jalisco. Apicultura Moderna 7:12-24. (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).