452 HYMENOPTERA OF AMERICA NORTH OF MEXICO 



Perdita texana (Cresson). Reduced to subsp. rank {teste Timberlake, 

 1958, loc. cit. supra, p. 376). 



*thelypodii Timberlake. Calif. (Inyo and Los Angeles Counties). On flowers 

 of Cleomella, Thelypodium. (Perdita) 

 Perdita thelypodii Timberlake, 1958. Calif. Univ. Pubs. Ent. 14: 354, 

 figs. 432, 433, 500. $, $. 



"^ therm ophila thermophila Timberlake. Southern Calif. On flowers of Erio- 

 gonum. (Perdita^ 

 Perdita thermophila thermophila Timberlake, 1962. Calif. Univ. Pubs. 

 Ent. 28: 77, figs. 815, 816, 886. ?, $. 



*therinophila trilobata Timberlake. Ariz., southern Calif. On flowers of Erio- 

 gonum. (Perdita) 

 Perdita thermophila trilobata Timberlake, 1962. Calif. Univ. Pubs. Ent. 

 28: 78. ?, 5. 



timberlake! Cockerell. Southern Calif. Collects pollen of Eriogonum. (Per- 

 dita) 

 Taxonomy: Timberlake, 1962, loc. cit. supra, p. 70, figs. 807, 808, 882. $. 



townsendi Cockerell. (Perdita) 



Taxonomy: Timberlake, 1958, loc. cit. supra, p. 320, figs. 376, 377, 474. 



*translineata Timberlake. Tex. (Van Zandt Co.). On flowers of Eriogonum 

 viultiflorum. (Perdita) 

 Perdita translineata Timberlake, 1960. Calif. Univ. Pubs. Ent. 17: 93, 

 figs. 618, 619,711. 5. 



tridentata Stevens. N. Dak., Nebr., Kans. On flowers of Aplopappus and 

 Helianthus. (Perdita) 

 Taxonomy: Timberlake, 1960, loc. cit. supra, p. 118, figs. 650, 651, 727. 

 9, $. 



*trifida Timberlake. Calif. (Mohave Desert). On flowers of Aplopappus 

 dCTddcTviiis C PcTdito, ) 

 Perdita trifida Timberlake, 1960. Calif. Univ. Pubs. Ent. 17: 37, figs. 

 546, 547, 675. $. 



"^trimaculata Timberlake. Southern Calif., Ariz. On flowers of Chryso- 



thamnus and Giitierrezia. (Perdita) 



Perdita trimaculata Timberlake, 1960. Calif. Univ. Pubs. Ent. 17: 62, 

 figs. 574, 575, 689. ?, $. 



trisignata ornata Timberlake. (Hesperoperdita) 



Perdita ruficauda ornata Timberlake. Changed to a subspecies of trisig- 

 nata by Timberlake's synonymy of ruficauda ruficauda under tri- 

 signata trisignata (1960, loc. cit. supra, p. 127). 



trisignata trisignata Cockerell, changed status. (Hesperoperdita) 



Perdita trisignata Cockerell. Reduced to subsp. rank (teste Timberlake, 



1960, loc. cit. supra, p. 127). 

 Perdita ruficauda ruficauda Cockerell (syn. by Timberlake, 1960, loc. cit. 

 supra, p. 127). 



*valida Timberlake. N. Mex. (Mesilla). (Perdita) 



Perdita valida Timberlake, 1962. Calif. Univ. Pubs. Ent. 28: 106. 9. 



*variegata pura Timberlake. Tex., Kans. At flowers of Monarda. (Perdita) 

 Perdita variegata pura Timberlake, 1960. Calif. Univ. Pubs. Ent. 17: 31. 



9, $. 



*variegata variegata Timberlake. Kans. On flowers of Monarda. (Perdita) 



Perdita variegata variegata Timberlake, 1960. Calif. Univ. Pubs. Ent. 17: 

 30, figs. 538, 539, 670. 9, $. 



*varleyi niveipennis Timberlake. Calif. (San Benito Co.). Collects pollen of 

 Eriogonum. (Perdita) 

 Perdita varleyi niveipennis Timberlake, 1962. Calif. Univ. Pubs. Ent. 28: 

 86. 9, $. 



