1752 Hymenoptera in America North of Mexico 



wootoni Cockerell. Tex., N. Mex., Ariz. Pollen: Polylectic, visits flowers oi Amorpha frutkosa, 

 Dasylirion wheeleri, Helenium autumnale, H. laciniatum, Isocoma, Larrea tridentata, 

 Meiilotus alba, Nolium microcarpa, Phacelia, Petalostemon flavescens, Sapindus 

 drummondi, Sphaeralcea laxa, Solidago occidentalis, Wislizenia refracta. 



Colletes wootoni Cockerell, 1897. Ann. and Mag. Nat. Hist. (6) 19: 42. 6. 



Colletes apacheorum Timberlake, 1943. Amer. Mus. Nat. Hist., Bui. 81: 401. 9. 



Species Group Aestivalis 



aestivalis Patton. Mass. south to N. C. west to Tenn., 111. Parasite: Epeolus interruptus Robt.? 

 Pollen: Unknown, but visits flowers oi Apocynum cannabmimt, Heracleuvi lanatum, 

 Heuchera americana, H. hispida, Krigia amplexicaulis, Polytaenia nuttallii, Rhus 

 glabra, Ribes gracile, Riibus villosus, Taenidia integerrima, Zizia aurea. 

 Colletes aestivalis Patton, 1879. Boston Soc. Nat. Hist, Proc. 20: 142. 9. 

 Colletes heucherae Robertson, 1891. Amer. Ent. Soc, Trans. 18: 61. 9, i. 

 andrewsi Cockerell. Nebr., Colo., Wis., S. Dak., Man. Pollen: Apparently an oligolege of 

 Heuchera. 

 Colletes Andrewsi Cockerell, 1906. Ann. and Mag. Nat. Hist. (7) 17: 311. 9. 



Species Group Robertsonii 



kansensis Stephen. Kans. Pollen: Unknown, but visits flowers of Monarda punctata 

 occidentalis. 

 Colletes kansensis Stephen, 1954. Kans. Univ. Sci. Bui. 36: 297, fig. 29. S. 

 larreae Timberlake. South. Calif., Ariz. Pollen: Oligolege of Larrea tridentata; males also have 

 been collected at flowers of Acamptopappus sphaerocephalus, Barbarea orthoceras. 

 Colletes larreae Timberlake, 1951. Wasmann Jour. Biol. 9: 193. 6,9. 

 metzi Timberlake. Colo. (Boulder). 



Colletes metzi Timberlake, 1951. Wasmann Jour. Biol. 9: 192. 6. 

 robertsonii Dalla Torre. 111. and Miss., west to Man., Colo., and N. Mex. Pollen: Unknown, but 

 visits flowers of Amorpha canescens, Monarda punctata occidentalis, Petalostemon 

 candidus, P. purpureum, P. violaceus. 

 Colletes punctata Robertson, 1891. Amer. Ent. Soc, Trans. 18: 92. 3. Preocc. 

 Colletes robertsonii Dalla Torre, 1896. Cat. Hym., v. 10, p. 44. N. name. 

 Colletes robustus Swenk, 1904. Ent. News 15: 251. 9, cJ. 

 timberlake! Stephen. Cole, Wyo. Pollen: Unknown, but visits flowers of Petalostemon. 



Colletes timberlakei Stephen, 1954. Kans. Univ. Sci. Bui. 36: 290, fig. 31. 6. 

 turgiventris Timberlake. Calif. Pollen: Unknown, but visits flowers of Phacelia including P. 

 hispida. 

 Colletes turgiventris Timberlake, 1951. Wasmann Jour. Biol. 9: 196. 6,9. 



Species Group Nudus 



brimleyi Mitchell. N. J., N. C, Ga., Fla. Pollen: Unknown, but visits flowers of Ilex cassine. 



Colletes brimleyi Mitchell, 1951. Elisha Mitchell Sci. Soc, Jour. 67: 231, figs. 14, 15. 9, cJ. 

 nudus Robertson. Ont. south to N. C. and La., west to Wis., Colo. Pollen: Unknown, but visits 

 flowers of Asclepias syriaca, Ceanothus, Daucus carota. Hydrangea arborescens, 

 Meiilotus alba, Monarda mollis, Parthe^iocissus, Pycnanthemum flexuosum, Rhus 

 copallina, R. glabra, Symphoricarpos orbiculatus, S. vulgaris, Verbe^ia urticifolia. 

 Colletes 7iudus Robertson, 1898. Acad. Sci. St. Louis, Trans. 8: 43. 9, 6. 

 Colletes Vierecki Swenk, 1905. Canad. Ent. 37: 301. 9. 

 Colletes hydrophilus Cockerell, 1906. Ann. and Mag. Nat. Hist. (7) 17: 313. 6. 



Species Group Americanus 



aberrans Cockerell. Mich., west to Alta., Colo., and N. Mex. Pollen: Unknown, but visits 

 flowers of Meiilotus, Petalostemon flavescens, P. villosum. 

 Colletes aberrans Cockerell, 1897. Ann. and Mag. Nat. Hist. (6) 19: 44. 9. 

 albescens Cresson. Wis. and 111., west to Man., Utah, and N. Mex. Pollen: Unknown, but visits 

 flowers of Amorpha canescens, Petalostemon purpureum. 

 Colletes albescens Cresson, 1868. Boston Soc. Nat. Hist., Proc. 12: 168. 9. 



