2074 Hymenoptera in America North of Mexico 



campanulae wilmingtoni (Mitchell). Fla. to Va., coastal. Ecology: Nests in borings. Parasite: 

 Coelioxys modesta Sm. Pollen: Unknown, but visits flowers of Galactia, Melilotus, 

 Pontederia, Solidago, Strophostyles. 

 Oligotropus wilmingtoni Mitchell, 1924. Elisha Mitchell Sci. Soc, Jour. 40: 156. 9,6. 



Biology: Krombein, 1967. Trap-nesting wasps and bees, pp. 341-342 (life history, nest 



architecture, parasite). 

 chilopsidis (Cockerell). Tex., N. Mex., Ariz., Calif., Mexico, deserts. Parasite: Nemognatha 

 snitellaris Lee. Pollen: Apparently polylectic, visits flowers of Acacia greggii, 

 Cercidiiim floridum, C. microphyllum, C. torreyayium, Chilopsis linearis, Cirsium, 

 Dalea catifomica, D. spinosa, Encelia farinosa, Helianthus, Heliotropium 

 curassavicum, Hoffmanseggia, Larrea tridentata, Marrubium vulgare, Medicago saliva, 

 Melilotus alba. Mimosa, Olneya tesota, Prosopis glandulosa var. torreyanum, Sapindus, 

 Senecio, Vauquelinia, Verbesi^ia encelioides. 



Lithurgus oblongus Fox, 1893. Calif. Acad. Sci., Proc. (2) 4: 20. 9. Preocc. 



Megachile chilopsidis Cockerell, 1900. Ann. and Mag. Hist. (7) 6: 17. 9. 



Megachile longula Fox, 1902. Ent. News 13: 137. N. name. 



Megachile pratti Cockerell, 1913. Ann. and Mag. Nat. Hist. (8) 11: 541. 6 (9 misdet.). 



Taxonomy: Mitchell, 1956. Pan-Pacific Ent. 32: 129-130 (synonymy). — Timberlake, 1957. 

 Pan-Pacific Ent. 33: 132 (synonymy). 



Biology: Hurd and Linsley, 1975. Smithsn. Contrib. Zool. 193: 38 (floral relationships). 

 davidsoni (Cockerell). South. Calif., Ariz. Pollen: Possibly oligolectic on Dicentra including D. 

 chrysantha, but visits other flowers including Fremontia, Lupinus austromontanus, 

 Penstemon, Senecio. 

 Megachile davidsoni Cockerell, 1902. South. Calif. Acad. Sci., Bui. 1: 70. 9. 

 Megachile occidentalis var. leucotricha Cockerell, 1902. South. Calif. Acad. Sci., Bui. 1: 137. 

 (J. 

 discorhina (Cockerell). Calif., Ariz., N. Mex.; Mexico (Baja California). Parasite: Leucospis 

 affinis Say. Pollen: Polylectic, visits flowers of Acacia greggii, Baileya, Cercidium 

 floridum, C. torreyanum, Coursetia, Dalea schottii, Encelia farinosa, Hyptis emoryi, 

 Larrea tridentata, Lepidium, Medicago saliva, Melilotus, Prosopis glandulosa var. 

 torreyanum, Se^iecio, Sphaeralcea ambigua. 

 Megachile discorhina Cockerell, 1924. Calif. Acad. Sci., Proc. (4) 12: 549. 9. 



Taxonomy: Mitchell, 1956. Pan-Pacific Ent. 32: 131 (tax. status). 



Biology: Hurd and Linsley, 1975. Smithsn. Contrib. Zool. 193: 38-39, fig. 16 (floral 

 relationships). 

 exilis exilis (Cresson). Tex., N. Mex., Ariz. Pollen: Unknown, but visits flowers of Baptisia 



tinctoria, Chilopsis, Coreopsis, Dalea, Lespedeza repeats, Melilotus, Polygala, Tephrosia 

 virginiana. 

 Megachile exilis Cresson, 1872. Amer. Ent. Soc, Trans. 4: 265. i. 

 Megachile studiosa Cresson, 1872. Amer. Ent. Soc, Trans. 4: 269. 9. 

 exilis parexilis (Mitchell). Md., Va., N. C, Ga., Fla., Ind., Ala., Miss., Ark., Tex., Ariz. Ecology: 

 Nests in borings. Pollen: Unknown, but visits flowers of Asclepias, Baccharis, Baptisia, 

 Ceanothus, Chilopsis, Condalia, Crotalaria, Erigeron, Galactia, Hydrolea, Ilex, 

 Melilotus, Mentha, Monarda, Oenothera, Phaseolus, Rhus, Tephrosia, Trifolium, 

 Vaccinium, Vicia. 

 Megachile (C helostomoides) exilis var. parexilis Mitchell, 1937. Amer. Ent. Soc, Trans. 63: 

 393. 6. 



Biology: Krombein, 1967. Trap-nesting wasps and bees, pp. 339-340 (life history, nest 

 architecture). 

 georgica (Cresson). N. J. to Fla., west to Ark. and Tex. Ecology: Nests in borings. Parasite: 

 Coelioxys modesta Sm., Leucospis affinis floridana Cress. Pollen: Unknown, but visits 

 flowers oi Afzelia cassinoides, Amorpha, Baptisia tinctoria, Chrysopsis, Clethra 

 alnifolia, Crotalaria, Desmodium, Erigeron, Galactia, Helenium, Hypericum, Lobelia, 



