Perdita trifasciata Timberlake, 1953:969, ♂. Holotype ♂, White Sands, New Mexico, June 27, 1940 (University of Kansas, leg. R.H. Beamer); Portman et al., 2016Portman, Z.M., J.L. Neff & T. Griswold 2016. Taxonomic revision of Perdita subgenus Heteroperdita Timberlake (Hymenoptera: Andrenidae), with descriptions of two ant-like males. Zootaxa 4214 (1):1-97.:81, Holotype ♂ (SEMC, no. SEMC1111156). - Timberlake, 1954Timberlake, P.H. 1954. A revisional study of the bees of the genus Perdita F. Smith, with special reference to the fauna of the Pacific Coast (Hymenoptera, Apoidea). Part I. University of California Publications In Entomology 9 (6):345-432. (distribution); Timberlake, 1968Timberlake, P.H. 1968. A revisional study of the bees of the genus Perdita F. Smith, with special reference to the fauna of the Pacific Coast (Hymenoptera, Apoidea). Part VII. University of California Publications In Entomology 49:1-196. (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); Portman et al., 2016Portman, Z.M., J.L. Neff & T. Griswold 2016. Taxonomic revision of Perdita subgenus Heteroperdita Timberlake (Hymenoptera: Andrenidae), with descriptions of two ant-like males. Zootaxa 4214 (1):1-97. (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).