ANDRENroAE 455 



PSEUDOPANURGUS subgenus HETEROSARUS Robertson, pp. 1098-1101 



Taxonomy: Timberlake, 1964. Amer. Mus. Novitates 2185, pp. 2-5 (key 

 to spp.). 



abdominalis tricolor (Cockerell). N. J. and Pa. to Ga. Taken on flowers of 

 Monarda punctata. 



albitarsis (Cresson). Transf. to subg. Pseudopanurgus, p. 1098. 



andrenoides (Smith). Minn, to N. B., south to N. C. Taken on flowers of 

 Aster, Rudbeckia, and Solidago. Transf. from subg. Pseudopan- 

 urgus, p. 1098 {teste Mitchell, 1960, loc. cit. supra, p. 272). 

 Pseudopanurgus (Heterosarus) asteris (Robertson) (syn. by Mitchell, 

 1960, loc. cit. supra, p. 272). 



*arizonicus Timberlake. Ariz., N. Mex. On flowers of Eriogonum. 



Pseudopanurgus arizonicus Timberlake, 1964. Amer. Mus. Novitates 

 2185, p. 28. $, 9. 



borealis (Cockerell). Syn. of stevensi Crawford. 



compositarum (Robertson). Md. to Ga., west to 111. Taken on flowers of 

 Aster, Bidens, Bolionia, Polygonum, Rudbeckia, and Solidago. 

 Pseudopanurgus (Heterosarus) illinoiensis (Cresson) of Catalog, in part. 

 P. compositarum not a syn. {teste Mitchell, 1960, loc. cit. supra, 

 p. 273). 



*dawsoni Timberlake. Colo., N. Mex. On flowers of cruciferous plant. 



Pseudopanurgus dawsoni Timberlake, 1964. Amer. Mus. Novitates 2185, 

 p. 10. 9, $. 



flavotinctus (Cockerell). Ariz. On lowers of Big elovia and Sphaeralcea. 



Taxonomy: Timberlake, 1964. Amer. Mus. Novitates 2185, pp. 20-23 {$, 

 $.). 



gerarrfiae Crawford. Syn. of parvus (Robertson). 



illinoiensis (Cresson). Que. to 111., south to Fla. and Tex. Taken on flowers 

 of Chrysanthemum leucanthemum. Remove compositarum (Rob- 

 ertson) from syn. (a valid sp.), 



labrosiformis labrosiformis (Robertson). N. C, Ga., 111. Taken on a number 

 of flowers. 



labrosus (Robertson). Transf. to subg. Pseudopanurgus, p. 1098. 



*nanulus Timberlake. N. Mex., Ariz.; Mexico (Chihuahua, Sonora, Baja Ca- 

 lifornia) . On flowers of Euphorbia, Physalis, and Wislizenia. 

 Pseudopanurgus nanulus Timberlake, 1964. Amer. Mus. Novitates 2185, 

 p. 5. 9, $. 



nebrascensis muesebecki Michener. N. C. to Fla., Miss. Taken on flowers of 

 Aster, Chrysopsis, and Haplopappus. 



nebrascensis nebrascensis (Crawford). Colo, and Alta., east to Maine and 

 N. J. Taken on flowers of Aster and Solidago. 



neomexicanus (Cockerell). Ariz. On many flowers. 



Taxonomy: Timberlake. 1964. Amer. Mus. Novitates 2185, pp. 8-10 (?, 

 $)• 



*opacicollis Timberlake. Ariz. (Prescott). On flowers of Eriogonum,. 



Pseudopanurgus opacicollis Timberlake, 1964. Amer. Mus. Novitates 

 2185, p. 15. 9. 



opaculus (Cockerell). 



Taxonomy: Timberlake, 1964. Amer. Mus. Novitates 2185, pp. 18-20 (9, 

 $). 



parvus (Robertson). N. C. to Ga., Miss., Mo., 111. Taken on a number of 

 flowers. 

 Pseudopanurgus (Heterosarus) pauper (Cresson) of Catalog, in part. P. 

 parvus not a syn. {teste Mitchell, 1960, loc. cit. supra, p. 278). 



