584 Bulletin Anterican Miueum of Natural History [Vol. XLII 



tropicalis Cockerell, 19186, p. 27. 9 . Pueblo Viejo, Vera Cruz, Mexico; 

 XII; (Bishopp). 



DIADA8IA Putton. 1879, p. 475 

 (Type: Melissodes enavata Cresson) 



Dalla Torre, 1896, p. 222, made it a subgenus of Eucera. Ashmead, 

 1899, p. (>4, made it a synonym of Ancyloscelis Latreillo, 1825, p. 363; 

 in this connection, see Cockerell, 19176, p. 304. Cockerell, 10056, pp. 

 741-745, reviewed the genus, 

 afflicta Cresson, 1878a, p. 217. (Melissodes) 9*, d". Texas. (Belfrage, 



Heiligbrodt). 



Diadasia tridncta Provancher, 1896, p. 28. 9 . Los Angeles, California, 

 (Coquillett). 

 Melissodes afflicta Birkman, 1899, p. 24.5. Fedor, Lee County, Texas. 

 Cockerell, 1904a, p. 22. 

 Cockerell, 19146, p. 410. Falfurrias, Texas; V; &i Heliardhus; (Morgan). 



afflicta perafflicta Cockerell, 19056, p. 744. d" ( 9 like afflicta). Clark 

 (Alt. 1962 ft.), Hamilton (3350 ft.), and Wallace (3000 ft.) counties, 



K.WSAS. 



afflictula Cockerell, 1910, p. 366. Mesilla, New Mexico; V. 



alhoresta Fowler, 1902, p. 321. Misprint for albovestita. 



albovestita Provancher, 1896, p. 27. 9 . Los Angeles, California; 



(Coquillett). 

 apacha. See diminuta. * 



arctos. See enavata. 

 australis Cresson, 1878a, p. 214. {Melissodes) 9*, cT. Colorado*; 



(Ridings, Morrison). Texas; (Belfrage). 



Patton, 1879, p. 476. 



Cockerell, 1893, p. 338. Near Swift Creek, Custer County, Col<orado. 



Cockerell, 1898f, p. 193. Santa Fo Canyon, Nkw Mexico; 7700 ft.; VI; 

 at Opuntia arhorescevs. Whitewater, Grant County, New Mexico; VII. 



Viereck, 1903?>, p. 728. San Bernardino, California; VII; at Helianthus; 

 (Cockerell). 



Cockerell, 190.%, p. 745. Wallace and Morton Couiities, Kansas; (Snow). 



Cockerell, 1906, pp. 73, 100, 310. Fedor, Texas; (Birkman). 



Cockerell, 19146, p. 410. Falfurrias, Texas; V; at Helianthus; (Morgan). 



australis knabiana Cockerell, 19176, p. 304. 9 . Tehuantepec, Oaxaca, 



.Mk.xko; \'1; (Knab). 

 australis opuntisB Cockerell, 1901, p. 286. (Diadasia rinconis opuntioe) 



9. San Pedro, (California; VII; at Opuntia; (W. P. Cockerell). 

 D. rinconis opuntice Viereck, 19036, p 728. 



