BIRDS OF NORTH AND MIDDLE AMERICA.- 43 



\_Hesperiphona'\ vespertlna Coues, Key N. Am. Birds?, 1872, 127, part. 

 Hesperplwna vespertina Coues, Proc. Ac. Nat. Sci. Phila., 1866, 80 (Ft. "Whipple, 



Arizona). 

 Hesperopliona vespertina Coues, Check List, 2de(l., 1882, no. 189, part. — Bkewstek, 

 Bull. Xutt. Orn. Club, vii, 1882, 227 (Walla Walla, e. Washington) .—Scott, 

 Auk, ii, 1885, 17-1: (s. Arizona). 

 H-lesperophona} vespertina Coues, Key N. Am. Birds, 2d ed., 1884, 342, part. 

 Hesperipliona vespertina, var. montana Ridgway, Bull. Essex Inst., v, Nov., 1S73, 

 181 (Colorado; nomen nudum/). — Baird, Brewee, and Ridgway, Hist. N.Am. 

 Birds, i, 1874, pi. 22, fig. 4. 

 {Hesperipliona vespertina^ var. montana Ridgway, in Baird, Brewer, and Ridg- 

 way's Hist. N. Am. Birds, i, 1874, 449, part^ [type from Cantonment Bur- 

 gwyn. New Mexico; U. S. Nat. Mus.). 

 \_Hesperipliona vespertina.'] Var. montana Baikd, Brewer, and Ridgway, Hist. N. 



Am. Birds, i, 1874, 450, in text. 

 Hesperipliona vespertina montana Goode, Bull. U. S. Nat. Mus., no. 20, 1888, 323. 

 Coccothraustes vespertina montana Mearxs, Auk, vii, July, 1890, 246 (crit. ; descr.), 

 258 (Ft. Verde, Arizona).— Merriam, North Am. Fauna No. 5, 1891, 101 

 (head waters Paj^ette R., centr. Idaho, July). 

 Coccothraustes vespertiniis j»o«tau«s Americax Ornithologists' Union Committee, 

 Auk, viii, Jan., 1891, 85, part; Check List, 2d ed., 1895, No. 514 a, part.— 

 Fisher, North American Fauna No. 7, 1893, 79 (Auburn, California, 

 Oct.).— Lowe, Auk, xi, 1894, 269 (Wet Mts., Colorado, 10,000 ft.).— 

 Merrill, Auk, xv, 1898, 14 (Ft. Sherman, Idaho, :\Iay to July 29).— 

 SwARTH, Bull. Coop. Orn. Club, i, 1899, 95 (summit Mt. Wilson, Los 

 Angeles Co., California, Oct. 30). 

 Cloccoiliraustes'} ves2)ertinus montanus Ridgway, Man. N. Am. Birds, 2d ed., 1896, 

 601, part. 



HESPERIPHONA VESPERTINA MEXICANA (Chapman). 

 MEXICAN EVENING GROSBEAK. 



Similar to II. r. montana, but bill smaller and more .slender; adult 

 male vt^ith yellow frontal band narrower,' and adult female with color 

 of the pileum decidedly darker. 



Adah male.— l^ength (skins), lt;5.lU-lT5.26 (170.18); wing-, 101>.22- 

 112.27 (111.25); tail, (U. 77-70. 61 (66.80); culmen, 19.56-20.83 (20.32); 

 depth of bill at base, 13.97; width of mandible at base, 12.70-13.21 

 (12.70); tarsus, 20.32-21.59 (21.08); middle toe. 17.78-19.05 (18.03); 

 width of yellow frontal band, 5.08-6.86 (5.59).=' 



-.l(7^</^///^rt/t^— Length (skins), 154.91-160.02 (157.73); wing, 106.13- 

 109.73(107.95); tail, 61.72-61.52 (63.25); culmen, 18.5-1-20.32 (19.81); 



^ First characterized (but unfortunately not named) by Professor Baird in Cooper's 

 Ornithology of California (1870, p. 175), and a colored figure of the head of the adult 

 male (the same as that afterwards published in History of North American Birds) 

 given, the form being referred to as one of "two strongly marked varieties" which 

 had been differentiated liy me. 



'^ Varying from 5.08 to 6.86, averaging 5.59. 



^ Four specimens. 



