1764 Hymenoptera in America North of Mexico 



georgicus (Cockerell). N. Y., N. C, Ga., Fla., Tex. Pollen: Unknown, but visits flowers of 



Crataegus, Hydrangea, Pyracantha, Salix. 

 Prosapis georgica Cockerell, 1898. Psyche 7 (sup.): 438. S. 



Prosopis georgica var. leana Cockerell, 1909. Ann. and Mag. Nat. Hist. (8) 4: 27. 6. 

 Hylaeus (Metziella) hydrangeae Mitchell, 1951. Elisha Mitchell Sci. Soc, Jour. 67: 244. 9. 

 timberlakei Snelling. Calif. (Sierra Nevada Mts.). Pollen: Unknown, but visits flowers of 



Ceanothus integeri'imus, Eriodictyon californicum, Eriogonum nudum, Haplopappus 



arborescens, Lesshigia leptoclada, Perideridia gairdneri, Solidago califoniica. 

 Hylaeus (Paraprosopis) timberlakei Snelling, 1970. Los Angeles Co. Mus., Contrib. Sci. 



180: 50. cJ, 9. 



Species Group Megalotis 



megalotis (Swenk and Cockerell). Mont., Colo., Nebr., Utah, Ariz. Pollen: Unknown, but visits 

 flowers of Cleome serrulata, Chrysothawnus, Eriogonum aureus. 

 Prosopis megalotis Swenk and Cockerell, 1910. Ent. News 21: 69. 6, 9. 



Species Group Sonorensis 



sonorensis Cockerell. Ariz., south. Calif.; Mexico (Baja California and Sonora). Pollen: 



Unknown, but visits flowers of Encelia, Eriogonuvi inflatum, Eucnide urens, Prosopis 

 glandulosa, Scropliularia califoniica, Stanleya pi^inata. 

 Hylaeus sonoretisis Cockerell, 1924. Calif. Acad. Sci., Proc. (4) 12: 530. 9. 

 Hylaeus soyiorensis var. ynelanorhinus Cockerell, 1924. Calif. Acad. Sci., Proc. (4) 12: 531. 

 9. 



Species Group Wootoni 



coloradensis (Cockerell). B. C, Wash., Idaho, Colo., N. Mex., Ariz., Utah, Nev., east, and south. 

 Calif. Pollen: Unknown, but visits flowers of Achillea lanulosa, A. niillaefolium, 

 Adenostoma fasciculatum, Baccharis pilularis, Barbarea orthoceras, Ceanothus 

 cordulatus, Chrysothamnus nauseosus, C. 7iauseosus consimilis, Descurainia sophia, 

 Erigeron canadensis, E. pygmaeus, Eriodictyon californicum, Eriogonum elegans, E. 

 lobbii, E. mariifolium, E. latifolium nudum, E. subscaposum, E. unibellatum, E. 

 virgatuni, Gnaphaliu^n thermale, Haplopappus arborescens, Holodiscus boursieri, 

 Ivesia muirii, Lasthenia chrysostoma, Lepidospartum squamatum, Mentzelia 

 laevicaulis, Oxypolis occideritalis, Penstemon davidsonii, P. newberryi, Potentilla 

 glaiidulosa, Rhatnnus califomica, Rhus, Solidago califoniica, S. multiradiata, 

 Sphenosciadium capitellatum. 

 Prosapis coloradensis Cockerell, 1896. Psyche 7 (sup.): 30. 6. 



cookii (Metz). N. Mex., Nev. (Churchill Co.), Ariz., south. Calif. Pollen: Unknown, but visits 

 flowers of Asclepias tuberosa, Chrysothamiius steyiophyllus, Erigeron canadensis, 

 Eriogonum aureu7n, E. fasciculatum, E. inflatuyn, E. plumatella, Fallugia, Gutierrezia 

 lucida, Haplopappus gracilis, H. linearifolius, Lepidospartum, Nolina parryi, 

 Petalostemon candidum, Phacelia ramosissima, Prosopis, Rhus trilobata. Salvia dorii, 

 S. vitosa, Solidago califoniica, Sphaeralcea ambigua, Tetradymia canescens. 



Prosopis cookii Metz, 1911. Amer. Ent. Soc, Trans. 37: 139. 6 (9 misdet.). 

 floridanus (Robertson). Maine, Minn., Mich., 111., Ky., N. C, Ga., Fla. Pollen: Unknown, but 

 visits flowers of Aster, Conius paniculata, Erigeron quercifolius, Eulophus 

 ainericanus. Ilex, Polygonella polygama, Pyracantha, Solidago. 



Prosopis floridanus Robertson, 1893. Amer. Ent. Soc, Trans. 20: 273. 9. 



Prosopis eulophi Robertson, 1905. Canad. Ent. 37: 236. 9,6. 



Hylaeus (Paraprosopis) packardi Mitchell, 1951. Elisha Mitchell Sci. Soc, Jour. 67: 244. 6. 

 lunicraterius Snelling. Idaho (Craters of the Moon National Monument), Calif. Pollen: 



Unknown, but visits flowers of Chamaebataiia millefolium, Chrysothamnus nauseosus, 

 C. viscidiflorus, Eriogonum nudum, E. ovalifolium, Phacelia leucophylla, Populus 

 tremuloides, Senecio serra. 



Hylaeus {Paraprosopis) lunicraterius Snelling, 1970. Los Angeles Co. Mus., Contrib. Sci. 

 180:46. d, 9. 



