Superfamily APOIDEA 1755 



lutzi pinorum Timberlake. South Calif. (San Bernardino and San Jacinto mts.). Pollen: 

 Unknown, but visits flowers o{ Asfer, Cryptantha, Eriogonum molestum var. 

 davidsonii, Gnaphalium thermale, Hemizovia wheeleri, Layia platyglossa. 



Colletes monticola pinorum Timberlake, 1951. Wasmann Jour. Biol. 9: 215. 9, cJ. 

 phaceliae Cockerell. B. C. to Man., south to Iowa, Kans., N. Mex., Ariz., Calif. Pollen: 



Unknown, but visits flowers of Aster, Cleome serrulata, Epilobium spicatum, Grindelia, 

 Helenium lacinatum, Mahmstrum cocchieum, M. cockerelU, Melilotus alba, 

 Petalostemon, Phacelia, Psoralea tenuiflora, Ribes, Senecio douglasii, Solidago, 

 Sphenosciadimn capitellatum, Tetradymia spinosa. 



Colletes phaceliae Cockerell, 1906. Ann. and Mag. Nat. Hist. (7) 17: 315. 9. 



Colletes salicicola geranii Cockerell, 1906. Canad. Ent. 38: 163. 6. 



Species Group Inaequalis 



inaequalis Say. N. S. to Ga., west to Sask., Kans., Tex., Idaho and Wash. Parasite: Tricrania 



sanguiuipennis Say. Pollen: Polylectic, visits flowers of Acer, Aesculus glabra sargentii. 

 Anemone virginiana, Arctostaphylos, Cercis canadensis, Claytonia palustris, Dendrium 

 buxifoliiim, Dentaria, Lomatium foeniculaceum, Prunus, Pyrus ioensis, Rhammis 

 utilis, Rhus aromatica, R. canadensis, Ribes, Rubus, Salix, Spiraea varihouttii, S. 

 thunbergi, Taraxacum, Viburnum acerifolium. 



Colletes inaequalis Say, 1837. Boston Jour. Nat. Hist. 1: 391. 9,6. 



Colletes propinqua Cresson, 1868. Boston Soc. Nat. Hist., Proc. 12: 165. 9. 



Colletes canadensis Cresson, 1868. Boston Soc. Nat. Hist., Proc. 12: 166. d. 



Colletes inaequalis ferrugineus Swenk, 1908. Nebr. Univ., Dept. Ent. Contrib. 1: 32. 9, S. 



Biology: Smith, 1898. Ent. News 9: 157 (as compactus). —Smith, 1900. N. Y. Ent. Soc, Jour. 

 8: 208 (as compactus). —Smith, 1901. N. Y. Ent. Soc, Jour. 9: 30 (as co^npactus). —Smith, 

 1901. N. Y. Ent. Soc, Jour. 9: 134. -Rau, 1922. Acad. Sci. St. Louis, Trans. 24 (7): 38. 

 -Rau, 1934. Acad. Sci. St. Louis, Trans. 28: 219. -Stephen, 1954. Kans. Univ. Sci. Bui. 36: 

 155. 

 thoracicus Smith. Mass. to Fla., west to Okla. and Tex. Parasite: Tricrania sa^iguinipemiis 



Say. Pollen: Polylectic, visits flowers of Amelanchier, Aronia, Brassica, Ilex, Mains, 



Melilotus, Padus, Prunus angustifolia, Salix, Vaccinium. 

 Colletes thoracica Smith, 1853. Cat. Hym. Brit. Mus., v. 1, p. 5. 9, 6. 

 Colletes rufithorax Swenk, 1906. Canad. Ent. 38: 42. 9, i. 

 Colletes pulcher Swenk, 1906. Canad. Ent. 38: 43. S. 



Biology: Parker and Boving, 1924. U. S. Natl. Mus., Proc. 64: 1-40. —Stephen, 1954. Kans. 

 Univ. Sci. Bui. 36: 156. 

 validus Cresson. N. B. to N. C, west to Mich. Ecology: A vernal species of wet woods and 

 swamplands. Pollen: Unknown, but visits flowers of Chamaedaphne calyculata, 

 Lencothoe racemosa, Prunus, Ribes oxyacantlioides, R. rubrum, Vaccinium, V. 

 corymbosum. 

 Colletes validus Cresson, 1868. Boston Soc Nat. Hist., Proc 12: 165. 9,3. 



Species Group Impunctatus 



impunctatus lacustris Swenk. N. B. and N. H. west to B. C, Yukon, N. W. T., Alaska. Pollen: 

 Unknown, but possibly visits flowers of Gaylussacia. Typical impunctatus Nylander is 

 Palaearctic 



Colletes lacustris Swenk, 1906. Ent. News 17: 257. 9,6. 



Colletes vici7ialis Graenicher, 1911. Pub. Mus. City Milwaukee, Bui. 1: 228. 9. 



Species Group Willistoni 



brevicornis Robertson. United States east of Rocky Mts. Pollen: Unknown, but visits flowers 

 of Asclepias, Batodendron, Callirhoe involucrata, C. leiocarpa. Campanula, Crataegus, 

 Melilotus alba, Opuntia, Pastiuaca saliva, Psoralea onobrychis, Rubus, Specularia. 



Colletes brevicornis Robertson, 1897. Acad. Sci. St. Louis, Trans. 7: 315. 6. 



Colletes opuntiae Cockerell, 1906. Ann. and Mag. Nat. Hist. (7) 17: 312. 6,9. 



Colletes brachyceros Graenicher, 1935. Ent. Soc. Amer., Ann. 28: 301. Preocc 



Taxonomy: Robertson, 1900. Acad. Sci. St. Louis, Trans. 10: 51. 9. 



