Perdita pilonotata Timberlake, 1980:6, ♂♀. Holotype ♀, 35 miles northeast of Las Cruces, in Otero Co., New Mexico, 3,900 ft, August 21, 1962 (California Academy of Sciences, San Francisco, leg. H.A. Scullen); 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.:691, I was unable to locate the holotype female, Neotype ♀ (UCRC, 182770), designated by 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.:61. - 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); 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).