SuperfamUy APOIDEA 1809 



Taxonomy: Cockerell, 1932. Canad. Ent. 64: 157. 9 (key). — Cockerell, 1932. Canad. Ent. 64: 

 157, 158. 9, 6 (key, a.s fragariana). — Timberlake, 1951. In Linsley, In Muesebeck, 

 Krombein and Townes, U. S. Dept. Agr., Agr. Monog. 2: 1071 (synonymy). —Mitchell, 1960. 

 N. C. Agr. Expt. Sta. Tech. Bui. 141: 161, figs. 29-32, table 4 (redescription). -Ribble, 

 1968. Nebr. Univ. State Mus., Bui. 8: 293-299, figs. 54-58, map 5 (redescription, synonymy). 



Biology: Ribble, 1968. Nebr. Univ. State Mus., Bui. 8: 297, table 7 (floral relationshiips, 

 stylopization). 



micheneri Ribble. Tex. (Brownsville). Pollen: Unknown, but visits flowers of Lesquerella. 

 Andrena (Micrandrena) micheneri Ribble, 1968. Nebr. Univ. State Mus., Bui. 8: 264 figs. 

 21-25. 9,6. 



microchlora Cockerell. B. C. to Calif., east to N. Dak., Wyo., Colo, and Ariz. Pollen: Polylectic 

 with some preference for the pollens of the Umbelliferae and to a lesser extent those of 

 the Cruciferae, Compositae, Caryophyllaceae and Ranunculaceae; visitation records 

 include Ainsinckin, Areiiaria califoniica, Brassica, Ceanothus cimeatus, Descourainia 

 sophia. Euphorbia albomarginata, Gilia, Helianthus, Lasthenia chrysostoma, Lomatium 

 dissectum, L. utriculatum, Musineon, Netnophila, Plectritis macrocera, Pninus 

 virginiana. Ranunculus califorjiicus, Salix, Sanicula nevadensis, Taraxacum, 

 Tropidocarpum gracile. 



Andrena microchlora Cockerell, 1922. Ann. and Mag. Nat. Hist. (9) 10: 265. 6,9. 



Andrena microchlora var. subalia Cockerell, 1936. Pan-Pacific Ent. 12: 143. 9. 



Taxonomy: Lanham, 1941. Ent. Soc. Amer., Ann. 34: 705, 707. 9, 6 (key). —Timberlake, 

 1951. U. S. Natl. Mus., Proc. 101: 397 (tax. characters and status). —Ribble, 1968. Nebr. 

 Univ. State Mus., Bui. 8: 274-279, figs. 36-40, map 3 (redescription, synonymy). 



Biology: Ribble, 1968. Nebr. Univ. State Mus., Bui. 8: 277, table 4 (floral relationships, 

 stylopization). 



neonana Viereck. N. J. to Fla., west to Ark. and Tex. Pollen: Unknown, but visits flowers of 

 Fragaria virginiana. Ilex, Prumis persica, Pyrus. 

 Andrena (Scrapter) neoyiana Viereck, 1917. Amer. Ent. Soc, Trans. 43: 400. 9. 



Taxonomy: Ribble, 1968. Nebr. Univ. State Mus., Bui. 8: 259-262, figs. 11-15, map 3 



(redescription). 

 nigrae Robertson. Conn, to north. Fla., west to Alta., Wash., Idaho, Utah and Tex. Pollen: 



Apparently polylectic, although majority of collections have been made at the flowers of 

 Salix; visitation records include Alnus, Anemoiie virginiana, Antennaria 

 plantaginifolia, Arabis laevigata, Barbarea, Capsella, Cotoneaster, Crataegus, 

 Cymopterus acaulis, Descourainia pinnata, Erigenia bulbosa, Lomatium daucifolium, 

 L. dissectum, Pninus americana, P. angustifolia, P. serotina, P. virginiana, Pyrus, 

 Rhus aromatica, Ribes, Rubtis, Salix amygdaloides, S. babylonica, S. cordata, S. 

 humilis, S. interior, S. nigra, S. sericea. Sassafras albidtim, Sphaeralcea coccinea. 

 Spiraea, Taraxacum, Thlaspi arvense. Viburnum, Zizia aurea. 



Andrena illinoensis var. bicolor Robertson, 1898. Acad. Sci. St. Louis, Trans. 8: 46. 9. 

 Preocc. 



Andrena nigrae Robertson, 1905. Canad. Ent. 37: 237. N. name. 



Andrena salicinellina Viereck and Cockerell, 1914. U. S. Natl. Mus., Proc. 48: 17. 6. 



Andrena (Andrena) abacta Viereck, 1917. Amer. Ent. Soc, Trans. 43: 365. 9. 



Taxonomy: Mitchell, 1960. N. C. Agr. Expt. Sta. Tech. Bui. 141: 165. 9. —Ribble, 1968. Nebr. 

 Univ. State Mus., Bui. 8: 313-319, fig. 69, map 8 (redescription, synonymy). 



Biology: Ribble, 1968. Nebr. Univ. State Mus., Bui. 8: 317, table 10 (floral relationships, 

 stylopization). 

 personata Robertson. Pa. to Ga., west to Nebr., Kans., Okla. and Tex. Pollen: Polylectic, visits 

 a wide variety of flowers, especially those of the Rosaceae, Salicaceae, Umbelliferae, 

 and Hydrophyllaceae in that order; visitation records include Alliaria officinalis, 

 Apocynum cannabinum, Arenaria patula, Ai'uncus, Claytonia virginica, Cornus, 

 Crataegus crus-galli, C. mollis, Ellisia nyctelea, Erigeron, Euphorbia commutata, 

 Fragaria, Geranium carolinianum, Lesquerella, Osmorhiza longistylus, Oxalis violacea. 



