ANDRENIDAE 447 



*nanula Timberlake. Ariz. (Douglas). On lowers of Euphorbia albomargin- 

 ata. (Ephnacrotera) 

 Perdita nanula Timberlake, 1960. Calif. Univ. Pubs. Ent. 17: 129. ?. 



"^nasuta galacticoptera Timberlake. Calif. (Inyo Co.). On flowers of Eriogon- 

 wm inflatum. (Perdita) 

 Perdita nasuta galacticoptera Timberlake, 1962. Calif. Univ. Pubs. Ent. 

 28: 76. ?, $. 



^nasuta nasuta Timberlake. Southern Calif., Nev., Ariz. On flowers of Erio- 

 gonum tricliopes. (Perdita) 

 Perdita nasuta nasuta Timberlake, 1962. Calif. Univ. Pubs. Ent. 28: 74, 

 figs. 813, 814,885. 9, $. 



*nasuta obscurescens Timberlake. Ariz., N. Mex. On flowers of Eriogonum. 

 (Perdita) 

 Perdita nasuta obscurescens Timberlake, 1962. Calif. Univ. Pubs. Ent. 

 28: 76. 9, $. 



*navarretiae angusticeps Timberlake. Calif. (Tuolumne Co.). (Glossoperdita) 

 Perdita navarretiae angusticeps Timberlake, 1960. Calif. Univ. Pubs. 

 Ent. 17: 128. $, 9. 



*navarretiae navarretiae Timberlake. Calif. (Mariposa Co.). On flowers of 

 Navarretia. (Glossoperdita) 

 Perdita navarretiae Timberlake, 1958. Calif. Univ. Pubs. Ent. 14: 379, 

 figs. 460, 461, 515. $, Reduced to subsp. rank {teste Timberlake, 

 1960, loc. cit. supra, p. 128). 



*navarretiae powelli Timberlake. Calif. (Nevada Co.). (Glossoperdita) 



Perdita navarretiae powelli Timberlake, 1962. Calif. Univ. Pubs. Ent. 

 91. $, 9. 



nebrascensis Swenk and Cockerell. (Pygoperdita) 



Taxonomy : Timberlake, 1958, loc. cit. supra, p. 395. 



*nigridia Timberlake. Calif. (Colorado desert). Collects pollen of Mentzelia 

 involucrata. (Perdita) 

 Perdita nigridia Timberlake, 1962. Calif. Univ. Pubs. Ent. 28: 18, figs. 



777,778,867. $, 9. 



nigrifacies Timberlake. Mexico (San Luis Potosi, Zacatecas). (Pentaper- 

 dita) 



Taxonomy : Timberlake, 1962, loc. cit. supra, p. 95. 



*nigrocincta Timberlake. Calif. (Mono Co.). (Perdita) 



Perdita nigrocincta Timberlake, 1958. Calif. Univ. Pubs. Ent. 14: 351. 



9. 



nitidella Cockerell. N. Mex., Ariz. On flowers of Aplopappus and Gutierre- 

 zia. (Perdita) 

 Taxonomy: Timberlake, 1960, loc. cit. supra, p. 70, figs. 586, 587, 695. $. 



*nubila Timberlake. Fla., Ark. On flowers of Erigeron. (Hexaperdita) 



Perdita nubila Timberlake, 1958. Calif. Univ. Pubs. Ent. 14: 392. 9, $. 



nuda Cockerell. N. Mex., Ariz. On flowers of Erigeron. (Perdita) 



Taxonomv: Timberlake, 1960, loc. cit. supra, p. 119. 9. — Timberlake, 

 1962, loc. cit. supra, p. 104, figs. 839, 840, 898. $. 



*nunierata hesperia Timberlake. Southern Calif.; Mexico (Baja California). 

 On flowers of Geraea, Larrea, Melilotus, and Prosopis. (Per- 

 dita) 

 Perdita numerata hesperia Timberlake, 1960. Calif. Univ. Pubs. Ent. 17: 

 62. 9, $. 



numerata numerata Cockerell, changed status. Tex., N. Mex., Ariz. On 

 flowers of Actinea and Salix. (Perdita) 

 Perdita numerata Cockerell. Reduced to subsp. rank {teste Timberlake, 

 1960, loc. cit. supra, p. 60, figs. 572, 573, 688). 



