454 HYMENOPTERA OF AMERICA NORTH OF MEXICO 



Perdita yosemitensis Timberlake, 1962. Calif. Univ. Pubs. Ent. 28: 63, 

 figs. 801, 802, 879. $, 9. 



*zebrata flavens Timberlake. Nev., Oreg., Idaho, Wyo., Utah, Colo. On 

 flowers of Cleoine, Engelmannia, Phacelia, Salsola. (Perdita) 

 Perdita zebrata flavens Timberlake, 1958. Calif. Univ. Pubs. Ent. 14: 



357. 9, $. 



zebrata zebrata Cresson, changed status. N. Mex., Colo., Nebr., Mont., Utah. 

 Taken on flowers of Aplopappus, Cleome, Helianthus, Nolina. 

 (Perdita) 

 Perdita zebrata Cresson. Reduced to subsp. rank (teste Timberlake, 

 1958, loc. cit. supra, p. 356, figs. 434, 435, 501). 



*zonalis aequalis Timberlake. Oreg., northern Calif., ? Nev., ? Mont. On 

 flowers of Chrysothamnus, Solidago. (Perdita) 

 Perdita zonalis aequalis Timberlake, 1958. Calif. Univ. Pubs. Ent. 14: 



344. ?, $. 



*zonaHs bernardina Timberlake. Calif. (Bear Valley and Santa Ana Canyon 

 in San Bernardino Mts.). On flowers of Aster, Chrysothamnus, 

 Eriogonum, Gutierrezia, Solidago. (Perdita) 

 Perdita zonalis bernardina Timberlake, 1958. Calif. Univ. Pubs. Ent. 14: 



345, figs. 416,417,492. $, $. 



*zonalis monticola Timberlake. Calif. (Sierra, Shasta, Nevada, Plumas and 

 Placer Counties). On flowers of Chrysothamnus, Solidago. (Per- 

 dita) 

 Perdita zonalis monticola Timberlake, 1958. Calif. Univ. Pubs. Ent. 14: 



345. 9, $. 



*zonalis pallescens Timberlake. Calif. (Morongo in San Bernardino Co.). On 

 flowers of Aplopappus, Gutierrezia. (Perdita) 

 Perdita zonalis pallescens Timberlake, 1958. Calif. Univ. Pubs. Ent. 14: 

 344. ?, $. 



zonalis zonalis Cresson, changed status. Calif. (Riverside and Kern Coun- 

 ties). On flowers of Eriogonum, Gutierrezia, Lepidospartum. 

 (Perdita) 

 Perdita zonalis Cresson. Reduced to subsp. rank (teste Timberlake, 1958, 

 loc. cit. supra, p. 343). 



Genus PANURGINUS Nylander, pp. 1097-1098 



atramontensis Crawford. Md. to Ga., Miss. Taken on flowers of Polycodium. 



melanocephalus (Cockerell). Collects pollen of T^aniiwcu^MS. 



Biology: Linsley and MacSwain, 1959. Calif. Univ. Pubs. Ent. 16: 20-21, 

 pi. 6. 



PSEUDOPANURGUS subgenus PSEUDOPANURGUS Cockerell, p. 1098 



albitarsis (Cresson). 111. to Conn., south to Tex. and Ga. Visits a number of 

 flowers. Transf. from subg. Heterosarus, p. 1099 (teste Mitchell, 

 1960, loc. cit. supra, p. 266). 

 Pseudopanurgus (Heterosarus) picipes (Cresson) (syn. by Mitchell, 1960, 

 loc. cit. supra, p. 266). 



andrenoides (Smith). Transf. to subg. Heterosarus, p. 1099. 



*helianthi Mitchell. Ind. (Tippecanoe Co.). Taken on flowers of Helianthus 

 annuus. 

 Pseudopanurgus (Pseudopanurgus) helianthi Mitchell, 1960. N. C. Agr. 

 Expt. Sta. Tech. Bull. 141: 267. 9. 



labrosus (Robertson). Transf. from subg. Heterosarus, p. 1100 (teste Mit- 

 chell, 1960, loc. cit. supra, p. 268). 



rugosus (Robertson). Md. to Ga., west to 111., Kans., Tex. Taken on flowers 

 of Bidens, Helianthus, Rudbeckia and Silphium. 



