1836 Hymenoptera in America North of Mexico 



heterosperma, Lepargyrea canadensis, Lomatium daucifolium, L. foenimlaceum, 

 Lonicera, Meiilofus alba, M. officinalis, Paeonia, Pastinaca sativa, Physocarpus 

 opulifolius, Populus deltoides, Prunus americanus, P. demissa, P. melanocarpa, P. 

 serotina, P. virginiana, Ptelea, Pyracantha, Pyrus leonis, P. mains. Ranunculus 

 abortivus, Rhamnus lanceolatus, Rhus aromatica, R. canadensis, R. toxicodendroyi, 

 Ribes gracile, Rosa, Rubus argenteus, Salix discolor, S. nigra, Sedum tematum, 

 Shepherdia argentea. Spiraea aru7icus, S. latifolia, Symphoricarpos, Tamarix gallica. 

 Taraxacum officinale, Thlaspi arvetise, Vaccinium, Viburnum opulus, V. prunifolium, 

 Zizia a urea. 



Andrena forbesii Robertson, 1891. Amer. Ent. Soc, Trans. 18: 59. 9. 



Trachandrena indotata Viereck, 1904. Canad. Ent. 36: 158, 159. 9,6. 



Andre7ia (Trachandrena) lincolni Viereck and Cockerell, 1914. U. S. Natl. Mus., Proc. 48: 

 13. 9. 



Andrena (Trachandrena) rodecki Cockerell, 1929. Ent. Soc. Amer., Ann. 22: 755. 9. 



Andrena (Trachandrena) pyracanthae Mitchell, 1960. N. C. Agr. Expt. Sta. Tech. Bui. 141: 

 194, fig. 35. 9 . 



Taxonomy: Robertson, 1902. Amer. Ent. Soc, Trans. 28: 189, 190. 9,6. —Cockerell, 1931. 

 Amer. Mus. Novitates 458: 16. 9. (as rodecki). —Cockerell, 1931. Amer. Mus. Novitates 

 458: 17 (key, as lincolni). — Atwood, 1934. Canad. Jour. Res. 10: 208, 209, figs. 9, 6 (key). 

 — Lanham, 1941. Ent. Soc. Amer., Ann. 34: 704, 707. 9, 6 (key). — Lanham, 1941. Ent. Soc. 

 Amer., Ann. 34: 704. 9 (key, as lincolni). —Mitchell, 1960. N. C. Agr. Expt. Sta. Tech. 

 Bui. 141: 183-184, figs. 35-36, table 5 (redescription). — LaBerge, 1973. Amer. Ent. Soc, 

 Trans. 99: 261-267, figs. 1, 4, 24-25 (redescription, synonymy, geogr. variation). 



Biology: LaBerge, 1973. Amer. Ent. Soc, Trans. 99: 266-267, table 1 (floral relationships). 

 fuscicauda (Viereck). B. C. to Calif, and west. Nev. and Ariz (Yuma). Pollen: Apparently 



polylectic, visits flowers of Arctostaphylos patula, Berberis, Ceanothus cordulatus, C. 



integerrimus, C. leucodermis, C. palmeri, C. soredatus, Chamaebatia foliolosa, 



Cryptantha intermedia, Eriodictyon califomicum, Eriogonum, Gilia, Horkelia pan-yi, 



Malus, Nemophila menziesii, Pinus ponderosa, Potentilla, Prunus demissa, P. 



eynarginata, P. ilicifolia, P. subcordata, Quercus dumosa, Rhamnus califomica, R. 



crocea, Salix laevigata, Tai-axacum denselionis. 

 Trachandrena fuscicauda Viereck, 1904. Canad. Ent. 35: 159. 9. 

 Andrena (Trachandrena) califomica Timberlake, 1951. U. S. Natl. Mus., Proc. 101: 373. 9, 



6. 

 Andrena (Trachandrena) califomica wickhami Timberlake, 1951. U. S. Natl. Mus., Proc. 



101: 375. 9. 



Taxonomy: LaBerge, 1973. Amer. Ent. Soc, Trans. 99: 357-361, figs. 1, 14, 66-67 

 (redescription, synonymy). 



Biology: LaBerge, 1973. Amer. Ent. Soc, Trans. 99: 361 (floral relationships). 

 heraclei Robertson. N. Y. to N. C, west to Kans. Pollen: Unknown, but visits flowers of 

 Camassia esculenta, Celastrus scayidens, Cercis canadeyisis, Crataegus, Coiiius, 

 Heracleum, Pastinaca sativa, Prunus, Ptelea, Salix, Taenidia, Washingtonia 

 longistylus. 

 Andrena heraclei Robertson, 1897. Acad. Sci. St. Louis, Trans. 7: 336. 9. 



Taxonomy: Robertson, 1902. Amer. Ent. Soc, Trans. 28: 189. 9. —Mitchell, 1960. N. C. Agr. 



Expt. Sta. Tech. Bui. 141: 184, fig. 35, table 5 (redescription). -LaBerge, 1973. Amer. Ent. 



Soc, Trans. 99: 343-346, figs. 1, 3, 56-57 (redescription). 

 hippotes Robertson. N. S. to B. C, south to Ga., west to Wash., Oreg. and north. Calif. Pollen: 

 Polylectic, visits a wide variety of flowers including Acer, Aesculus glabra sargentii, 

 Amelanchier arborea, Amorpha canescens, Angelica atropurpurea, Barbarea vulgaris, 

 Berberis, Caltha palustyis, Camassia esculenta, Ceanothus ovatus, Celastrus, Cercis 

 canadeiisis, Chamaedaphne, Clayfonia, Comus ynas, Crataegus ynollis, Daucus carota, 

 Dentaria laciniata, Descourainia intermedia. Echinacea angustifolia, E. purpurea, 

 Encelia, Euphorbia, Fragaria, Fraxinus, Hieracium, Ligustruyn vulgare, Lomatium 

 tritematum, Lonicera fragrantissima, Melilotus alba, M. officinalis, Nyssa sylvatica, 



