Perdita solitaria Cockerell, 1897:152, ♀. 2 ♀♀, Soledad Canon, Organ Mountains, New Mexico, August 15 (leg. C.H.T. Townsend); Danforth, 1996Danforth, B.N. 1996. Phylogenetic analysis and taxonomic revision of the Perdita subgenera Macrotera, Macroteropsis, Macroterella and Cockerellula (Hymenoptera: Andrenidae). The University of Kansas Science Bulletin 55 (6):635-692.:688, Holotype ♀ (NMNH, No. 3384). - Danforth, 1996Danforth, B.N. 1996. Phylogenetic analysis and taxonomic revision of the Perdita subgenera Macrotera, Macroteropsis, Macroterella and Cockerellula (Hymenoptera: Andrenidae). The University of Kansas Science Bulletin 55 (6):635-692. (distribution).
Perdita atrella Timberlake, 1968:4, ♀. Holotype ♀, 20 miles south of Estacion Llano, Sonora, Mexico, Aug. 18, 1964 (University of California, Riverside, leg. M.E. Irwin); Danforth, 1996Danforth, B.N. 1996. Phylogenetic analysis and taxonomic revision of the Perdita subgenera Macrotera, Macroteropsis, Macroterella and Cockerellula (Hymenoptera: Andrenidae). The University of Kansas Science Bulletin 55 (6):635-692.:688, Holotype ♀ (CAS, No. 14434). Synonymized with Perdita solitaria Cockerell, 1897 by Danforth, 1996Danforth, B.N. 1996. Phylogenetic analysis and taxonomic revision of the Perdita subgenera Macrotera, Macroteropsis, Macroterella and Cockerellula (Hymenoptera: Andrenidae). The University of Kansas Science Bulletin 55 (6):635-692.:688. - As Macrotera atrella: - 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).
Perdita quadridentata Timberlake, 1980:1, ♂♀. Holotype ♂, 5 miles east of Nogales, Santa Cruz Co., Arizona, Sept. 1, 1970 (University of California, Riverside, leg. G.E. & R.M. Bohart); Danforth, 1996Danforth, B.N. 1996. Phylogenetic analysis and taxonomic revision of the Perdita subgenera Macrotera, Macroteropsis, Macroterella and Cockerellula (Hymenoptera: Andrenidae). The University of Kansas Science Bulletin 55 (6):635-692.:688, Holotype ♂ (CAS, No. 14680). Synonymized with Perdita solitaria Cockerell, 1897 by Danforth, 1996Danforth, B.N. 1996. Phylogenetic analysis and taxonomic revision of the Perdita subgenera Macrotera, Macroteropsis, Macroterella and Cockerellula (Hymenoptera: Andrenidae). The University of Kansas Science Bulletin 55 (6):635-692.:688.