Superfamily APOIDEA 1781 



gardineri Cockerell. Md. to Ga., west to S. Dak., Colo, and Tex. Pollen: Apparently an oligolege 

 of early summer flowering Compositae, especially Senecio including S. aureus, S. 

 pauperculus var. balsaniitae, S. sviallii, S. multilobatus, S. triangularis, but visits other 

 flowers including Aster, Astragalus striatus, Baileya ynultiradiata, Crepis runcinata, 

 Geraea, Hynienoxys glabra, Lesqnerella ovalifolia, Penstemon, Rubus. 



Andrena (Pterandrena) gardineri Cockerell, 1906. Ann. and Mag. Nat. Hist. (7) 17: 307. 9. 



Andrena ashmeadi Viereck and Cockerell, 1914. U. S. Natl. Mus., Proc. 48: 45. 9. 



Andrena (Opandrena) lamellicauda Cockerell, 1925. Ann. and Mag. Nat. Hist. (9) 16: 629. 

 6. 



Andrena campbelli Cockerell, 1933. Pan-Pacific Ent. 9: 153. S. 



Taxonomy: Lanham, 1941. Ent. Soc. Amer., Ann. 34: 711 (tax. characters). — Lanham, 1951. 

 In Linsley In Muesebeck, Krombein and Townes, U. S. Dept. Agr., Agr. Monog. 2: 1066 

 (synonymy). —Mitchell, 1960. N. C. Agr. Expt. Sta. Tech. Bui. 141: 146-147, figs. 24-26, 

 table 4 (redescription). 



Biology: Clements and Long, 1923. Carnegie Inst. Wash., Pub. 366: 249 (ecology). 

 haynesi Viereck and Cockerell. Alta. and N. Dak., south to Tex. Pollen: Oligolege of 



Helianthus, mostly H. petiolaris, but also visits other flowers presumably for nectar 

 including Campanula, Echinacea pallida, Soiidago rigida. 

 Andrena haynesi Viereck and Cockerell, 1914. U. S. Natl. Mus., Proc. 48: 26. 9. 



Taxonomy: Cockerell, 1931. Amer. Mus. Novitates 458: 14. 9 (key). 

 helianthi Robertson. Que. south to Va., west to Alta., Oreg., Calif, and Ariz. Pollen: Oligolege 

 of Compositae, apparently preferring the flowers of Helianthus including H. annuus, H. 

 coloradinus, H. coronatus, H. divaricatus, H. giganteus, H. grosseserratus, H. 

 inaximilliani, H. petiolaris, H. rigidus, H. subrhomboideus, H. tuberosus, but also visits 

 other flowers including Aster novaeangliae, Bidens aristosa, Chrysothamnus nauseosus, 

 Cirsiuvi undulatum, Cleome semdata, Gilia, Gutierrezia sarothrae, Medicago sativa, 

 Rudbeckia laciniata, Silphium perfoliatum, Soiidago canadensis, S. rigida, Verbesina 

 encelioides, V. oreophila. 



Andre7ia helianthi Robertson, 1891. Amer. Ent. Soc, Trans. 18: 55. 9, 6. 



Andrena nitidior Cockerell, 1900. Ann. and Mag. Nat. Hist. (7) 5: 406. 9 . 



Andrena graenicheri Cockerell, 1902. Ann. and Mag. Nat. Hist. (7) 9: 104. 9. 



Andrena lincolnella Viereck and Cockerell, 1914. U. S. Natl. Mus., Proc. 48: 46. 9. 



Taxonomy: Robertson, 1902. Amer. Ent. Soc, Trans. 28: 194. 9,6. —Mitchell, 1960. N. C. 

 Agr. Expt. Sta. Tech. Bui. 141: 147-148, figs. 24-25 (redescription). — LaBerge, 1967. Nebr. 

 Univ. State Mus., Bui. 7: 94-101, figs. 8, 94-98, table 3 (redescription, synonymy). 



Biology: Hicks, 1926. Colo. Univ., Studies 15: 222 (nesting habits). 

 helianthiformis Viereck and Cockerell. Mont, and N. Dak., south to Kans. Pollen: Apparently 

 an oligolege of Echinacea including E. angustifolia, E. pallida, but also visits other 

 flowers including Amorpha canescens, Gaillardia, Heliopsis helianthioides, Melilotus 

 officinalis. 

 Andrena helianthiformis Viereck and Cockerell, 1914. U. S. Natl. Mus., Proc. 48: 26. 9. 

 humeralis LaBerge. Tex. Pollen: Unknown, but visits flowers oi Aster, Baccharis. 



Andrena (Callandrena) humeralis LaBerge, 1967. Nebr. Univ. State Mus., Bui. 7: 76. 9, 

 6. 

 ignota LaBerge. S. C. (Florence). 



Andrena {Callandrena) ignota LaBerge, 1967. Nebr. Univ. State Mus., Bui. 7: 83. 9. 



irrasus LaBerge. 111., Nebr., Kans., Wyo., N. Mex. Pollen: Unknown, but visits flowers of 

 Amphiachyris dracunculoides, Aster, Chrysothamnus. 

 Andrena (Callandrena) irrasus LaBerge, 1967. Nebr. Univ. State Mus., Bui. 7: 131, figs. 

 129-133. 9, cJ. 

 isocomae Timberlake. Calif. Pollen: Oligolege of Compositae, visits flowers oi Chrysothamnus, 

 Eriogonum, Gaillardia, Gutierrezia californica, G. lucida, G. sarothrae, Haplopappus 

 bemardinus, H. vemonioides, Heterotheca grandiflora, Senecio douglasii, Soiidago. 

 Andrena (Pterandrena) isocomae Timberlake, 1951. U. S. Natl. Mus., Proc. 101: 378. 9, i. 



