434 HYMENOPTERA OF AMERICA NORTH OF MEXICO 



Andrena (Onagrandrena) raveni Linsley and MacSwain, 1961. Pan-Pa- 

 cific Ent. 37: 118. 9, 5. 



Biology: Linsley, MacSwain and Raven, 1963. Univ. Calif. Pubs. Ent. 

 33: 31-36. 



*recta Mitchell. Minn, to N. Y. south to N. C. (Leucandrena) 



Andrena (Leucandrena) recta Mitchell, 1960. N. C. Agr. Expt. Sta. 

 Tech. Bull. 141: 217, fig. 43. 9. 



regularis Malloch. B. C. to N. S., in eastern U. S. from Minn, to New Eng- 

 land States, south to Ga. On flowers of Aster, Brassica, Pyrus, 

 Rubus, Syringa, and Vaccinium. (Bythandrena) 



rehni Viereck. New England to Ga. Visiting flowers of Aruncus, Castanea, 

 Ceanothus, Chrysanthemum, and Hydrangea. (Trachandrena) 



robertsonii Dalla Torre. Colo, and Minn, to N. S., south to Ark. and Ga. 

 Visiting a number of flowers. (Gonandrena) 

 Change robertsoni to robertsonii in specific heading and in original cita- 

 tion. 



*robervalensis Mitchell. Que., Mich., Minn. On flowers of Melilotus alba. 

 ( ICnemidandrena) 

 Andrena (? Cnemidandrena) robervalensis Mitchell, 1960. N. C. Agr. 

 Expt. Sta. Tech. Bull. 141: 175. 9. 



rozeni Linsley and MacSwain. (Onagrandrena) 



Biology: Linsley, MacSwain and Raven, 1963. Univ. Calif. Pubs. Ent. 

 33: 6-11,36-37. 



*rubi Mitchell. N. C, Ga. Visiting flowers of Aronia and Rubus. (Trachan- 

 drena) 

 Andrena (Trachandrena) rubi Mitchell, 1960. N. C. Agr. Expt. Sta. 

 Tech. Bull. 141: 198, fig. 35. ?. 



rubrotincta Linsley. (Onagrandrena) 



Biology: Linsley, MacSwain and Raven, 1963. Univ. Calif. Pubs. Ent. 

 33: 16-18. 



rudbeckiae Robertson. 111. to Kans., south to Tex. and N. C. On flowers of 

 Coreopsis, Lepachys, Rudbeckia and Verbesina. (Pterandrena) 



rufosignata Cockerell. Minn, to N. B. and New England states. (? Gonan- 

 drena) 



Taxonomy: Knerer and Atwood, 1963. Canad. Ent. 95: 585, figs. 5, 7 



rugosa Robertson. Minn, to N. S., south to Ga. Visiting a number of flowers. 

 (Trachandrena) 

 Andrena (Trachandrena) paenerugosa Viereck (syn. by Mitchell, 1960, 

 loc, cit. supra, p. 198). 



salicinellina Viereck and Cockerell. Syn. of miserabilis bipunctata Cresson. 



salictaria Robertson. Colo, to N. S., south to Ga. and Miss. On a number of 

 flowers. (Micrandrena) 



sayi Robertson. Tenn. and N. C. north to Minn, and N. B. Visiting many 

 flowers. (Gyntnandrena) 



*seavillensis Mitchell. N. J. (South Seaville) . (1 Leucandrena) 



Andrena (? Leucandrena) seavillensis Mitchell, 1960. N. C. Agr. Expt. 



Sta. Tech. Bull. 141: 217, fig. 43. 9. 



semirufa Cockerell. Syn. of nivalis Smith. 



♦sevierensis Mitchell, emended. Tenn. (Sevier Co.). (? Gymnandrena) 



Andrena (? Gymnandrena) seviensis (!) Mitchell, 1960. N. C. Agr. 

 Expt. Sta. Tech. Bull. 141: 132, fig. 20. 9. 



sigmundi Cockerell. Sask. and Minn, to N. B., south to Ga. Visiting flowers 

 of Amelanchier, Prunus, Rubus and Salix. (Trachandrena) 

 Andrena (Trachandrena) weedi Viereck (syn. by Mitchell, 1960, loc. cit. 

 supra, p. 202). 



