516 Bulletin American Museum of Nalural History [Vol. XLII 



(?) B. pralicola Kirby, 1837, p. 274. 9 . Lat. 65, North America. 



Putnam, 1876, p. 195, and Cresson, 1876, p. 210. Spring Lake, Utah 

 County, Utah. Empire, Colorado. (Putnam) 



Bowles, 1880, p. 33. Montreal, Canada. 



Hundlirsch, 1891. p. 4.52 (part). British Columbia. 



Viereck. 1901, p. 325. Eagle City, Al.vska; 6530'N.; (Kirk). 



Titus, 1902, p. 43. Marshall Pass, Lizard Head (Ball), and Ward, 

 Colorado; VIII. 



B alaskensi^ Ashmead, 1902a, p. 128. 9, S. Sitka and Fox Point, 

 Alaska; VI, VII. 



B. dimidiattis Ashmead, 1902a, p. 129. 9, S. Fox Point and Wrangell 

 (Wiekham), Alaska; VII. 



B. flavifrons vegamis Cockerell, 1903rt, p. 891. cf . Top of Las Vegas 

 Range, New Mexico; about 11,(K)0 ft. Typical specimens oi flavifrons there 

 and above timber line on Truchas Peaks (W. P. Cockerell), also at Beulah 

 (Skinner), New Mexico. 1906, p. 312: "Arctic Alpine to Canadian." 



Cockerell, 1907b, p. 257. Eldora (Rohwer) and above timber line on Ara- 

 pahoe Peak (W. P. Cockerell), Colorado; VIII. 



B. praticolus Fletcher and Gibson, 1908, p. 111. St. Albert, Alberta; 

 (Fletcher). (?) Metlakatla, British Columbia; (Keen). 



Tucker, 1909, p. 277. Cheyenne Canyon near Colorado City, Buffalo, 

 and Colorado Springs, Coloraeo; VII, VIII. 



B. flavifrons dimidiatus Cockerell, 1910a, p. 25. Calgary, Alberta. 



Franklin, 1913, p. 368. Metlakatla, Fort Yukon, and Juneau, Alaska. 

 Vancouver, British Columbia. Blue Mountains, Washington. Idaho. 

 Montana. 



Sladen, 1915, p. 84. Agassiz, British Columbia; VII; (Treherne). Nest; 

 see Psithyrus insularis. 



Cockerell, 19156, p. 483. Nebraska Hill and Corona (above timber line), 

 Colorado; at Trifolium dasycarpum and Mertensia hakeri; (Kenoyer). 



Cockerell, 19196, p. 294. Hudsonian zone on Longs Peak trail, Colorado. 



See centralis and vosnesenskii. It seems that dimidiatus, at least, should 

 be recognized as a variety. 



[P.] formosus Smith, 1854, p. 403. 9 . Oaxaca, Mexico, tho published 

 locality (India) being wrong; see Cockerell, 1899/), p. 19, and Meade- 

 Waldo, 1916, p. 469. 



B. pulcher Cresson, 1863, p. 108. 9 . Jalapa, Mexico; (Akhurst). 



B. ephippiatus pulcher Handlirsch, 1888, p. 233. 



Franklin, 1913a, p. 91. Ixtaceihautl, Popocateijetl (8000 ft.), and Ozumba 

 [Orizaba?], Mexico. Olap de Moka, Department Solola, Guatemala. 

 Venezuela. 



Franklin, 1915, p. 414. Mexico: Xucumanatlan, 7000 ft., (Smith), and 

 Omilteme, 8000 ft., both in Guerrero; Cuidad, 8100 ft., (Forrer); and 

 Orizaba. Santa Cruz, San Geronimo, and Capetillo, Guatemala; 

 (Champion). 



