Monumetha argentifrons Cresson - Cockerell, 1901Cockerell, T.D.A. 1901. Contributions from the New Mexico Biological Station - XI. New and little-known insects from New Mexico. The Annals and Magazine of Natural History ser. 7: v. 7:333-337. (distribution); Titus, 1904Titus, E.S.G. 1904. Notes on Osmiinæ with descriptions of new genera and species. Journal of the New York Entomological Society 12 (1):22-27. (distribution). - As Hoplitis albifrons argentifrons: - Michener, 1947Michener, C.D. 1947. A character analysis of a solitary bee, Hoplitis albifrons (Hymenoptera, Megachilidae). Evolution 1 (3):172-185. (distribution); Michener, 1954Michener, C.D. 1954. Descriptions and records of North American Hoplitis and Anthocopa (Hymenoptera, Megachilidae). The Pan-Pacific Entomologist 30 (1):37-52. (distribution); Mayer et al., 2000Mayer, D.F., E.R. Miliczky, B.F. Finnigan & C.A. Johansen 2000. The bee fauna (Hymenoptera: Apoidea) of southeastern Washington. Journal of the Entomological Society of British Columbia 97:25-32. (distribution).
Hoplitis albifrons Kirby, 1837 - Frohlich et al., 1988Frohlich, D.R., W.H. Clark, F.D. Parker & T.L. Griswold 1988. The xylophilous bees and wasps of a high, cold desert: Leslie Gulch, Oregon (Hymenoptera: Apoidea, Vespoidea). The Pan-Pacific Entomologist 64 (3):266-269. (distribution); Esperanza de Pedro, 2021Esperanza de Pedro, D. 2021. . :. (distribution). - As Chelostoma albifrons: - As Hoplitis albifrons albifrons: - Michener, 1947Michener, C.D. 1947. A character analysis of a solitary bee, Hoplitis albifrons (Hymenoptera, Megachilidae). Evolution 1 (3):172-185. (distribution).