Superfamily APOIDEA 2131 



Biology: Michelbacher, Smith and Hurd, 1964. Calif. Agr. 18: 2-4, figs, (pollination of 

 squashes, gourds and pumpkins). —Hurd and Linsley, 1964. Hilgardia 35: 376-382, 2 tables 

 (bid. summary). —Michelbacher, Hurd and Linsley, 1968. Bee World 49: 159-167, 6 figs, 

 (feasibility of introducing squash bees into the Old World). —Hurd, Linsley and Whitaker, 

 1971. Evolution 25: 218-234, 4 figs., 3 tables (squash bees and origin of cultivated 

 Cucurbita). 



Genus XENOGLOSSA Subgenus EOXENOGLOSSA Hurd and Linsley 



Xenoglossa subg. Eoxenoglossa Hurd and Linsley, 1970. Calif. Univ. Pubs. Ent. 62: 34. 

 Type-species: Melissodes strenua Cresson. Orig. desig. 

 kansensis Cockerell. N. C. and Ga., west to Colo., N. Mex. and Tex. Pollen: Oligolectic on 

 Ciicurbita foetidisshna and domestic species of Cucurbita. 

 Xenoglossa strenua var. Kansensis Cockerell, 1905. Psyche 12: 104. 6. 

 strenua (Cresson). Transcont., Md. to Fla., west to south. Calif., south to San Luis Potosi, 



Durango, Baja California and Sinaloa, Mexico. Parasite: Triepeolus remigatus (Fabr.). 

 Pollen: Oligolectic on Cucurbita foetidissima and domestic species of Cucurbita. Pollen 

 collecting females have been found occasionally at the flowers of Cucurbita digitata and 

 C. palmata, but these plants do not appear to be preferred pollen sources. 

 Melissodes stremia Cresson, 1878. Acad. Nat. Sci. Phila., Proc. 30: 213. 9, <J. 

 Xenoglossa cucurbitarum Cockerell, 1896. Canad. Ent. 28: 192. 6,9. 



Taxonomy: Bohart, 1964. Pan-Pacific Ent. 40: 174-182, 17 figs, (larva). — Rozen, 1965. Amer. 

 Mus. Novitates 2233: 10-11, figs. 15-19 (larva). 



Biology: Bohart, 1964. Pan-Pacific Ent. 40: 174-182, 17 figs, (nesting habits, nest architecture, 

 parasite). -Bohart, 1966. Pan-Pacific Ent. 42: 255-262, 20 figs, (parasite). 



Genus XENOGLOSSA Subgenus XENOGLOSSA Smith 



Xenoglossa Smith, 1854. Cat. Hym. Brit. Mus., v. 2, p. 315. 

 Type-species: Xe^ioglossa fiilva Smith. Monotypic. 



Species Group Patricia 



angustior Cockerell. Calif., Ariz., N. Mex.; Mexico (Baja California and Sonora). Pollen: 

 Oligolectic on Cucurbita digitata, C . foetidissima, C. palmata and most, if not all, 

 domestic Cucurbita grown within its geographic range. 

 Xenoglossa patricia angustior Cockerell, 1899. Entomologist 33: 64. 6. 



Taxonomy: Rozen, 1965. Amer. Mus. Novitates 2233: 8-10, figs. 3-10 (larva). 

 patricia Cockerell. N. Mex., Tex.; Mexico (Chihuahua, Coahuila, and Durango). Pollen: 



Oligolectic on Cucurbita foetidissima and most, if not all, domestic Cucurbita grown 

 within its geographic range. 

 Xenoglossa patricia Cockerell, 1896. Canad. Ent. 28: 191. 6,9. 



Species Group Fulva 



gabbii crawfordi Cockerell. South. Ariz.; Mexico (south to Michoacan and Morelos). Pollen: 



Oligolectic on Cucurbita martinezii, C. sororia and most, if not all, domestic Cucurbita 

 grown within its geographic range. The typical subspecies occurs in southern Mexico 

 (Oaxaca and Chiapas) and Central America (Costa Rica, El Salvador, Guatemala, 

 Nicaragua, and possibly Panama). 



Xenoglossa crawfordi Cockerell, 1910. Ann. and Mag. Nat. Hist. (8) 5: 367. 6. 



Xenoglossa dugesi Cockerell, 1919. U. S. Natl. Mus., Proc. 55: 194. 9. 



Biology: Michelbacher and Hurd, 1968. Pan-Pacific Ent. 44: 58-68, 1 fig., 3 tables (nest site, 

 late season foraging behavior). —Michelbacher and Hurd, 1968. Folia Ent. Mexicana 18-19: 

 110-111 (ecology and distribution). 



Genus CEMOLOBUS Robertson 



Cemolobus Robertson, 1902. Canad. Ent. 34: 324. 



Type-species: Xenoglossa ipomoeae Robertson. Monotypic and orig. desig. 



