420 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



Adult female.— 'Leng:th. (skins), 115-124 (120); wing, 66-67 (66.4); 

 tail, 42.5-45.5 (44); culmen, 25-27 (25.7)." 



Tres Marias Islands (Maria Madre Island), western Mexico. 



Amazilia (Pyrrhophsena) graysoni Lawrence, Ann. Lye. Nat. Hist. N. Y., viii, 

 1866, 404 (Tres Marias Islands, w. Mexico; coll. U. S. Nat. Mus.). 



Pyrrhophsena graysoni Lawrence, Proc. Bost. Soc. N. H., xiv, 1871, 283; Mem. 

 Bost. Soc. N. H., ii, 1874, 292. 



Amazilia graysoni Gould, Ibis, 1867, 247. — Mulsant and Verreaux, Hist. Nat. 

 Ois.-Mouch., i, livr. 4, 1874, 286; iv, livr. 3, 1878, 180.— Elliot, Classif. and 

 Synop. Troch., 1879, 219. — d'Hamonville, Bull. Soc. Zool. France, xi, 

 1886, 313 (reprint, p. 11; descr.; crit.). — Sharpe, in Gould's Mon. Troch., 

 Suppl., 1887.— RiDGWAY, Rep. U. S. Nat. Mus., 1890 (1891), 364.— Salvin, 

 Cat. Birds Brit. Mus., x\d, 1892, 209. — Salvin and Godman, Biol. Centr.- 

 Am., Aves, ii, 1892, 294.— Boucard, Gen. Hum. Birds, 1894, 195.— Nelson, 

 North Am. Fauna, no. 14, 1899, 45 (habits; crit.). 



[Amazilia] graysoni Sclater and Salvin, Nom. Av. Neotr., 1873, 92. — Mulsant, 

 Ann. Soc. Linn. Lyon, xxii, 1876, 206.— Sharpe, Hand-list, ii, 1900, 109. 



A[mazilia] graysoni Ridgway, Man. N. Am. Birds, 1887, 318; Rep. U. S. Nat. 

 Mus., 1890 (1891), 364 (diagnosis, etc.).— Hartert, Das Tierreich, Troch., 

 1900, 61 (monogr.). 



[Eranna] graysoni Heine and Reichenow, Nom. Mus. Hein. Orn., 1890, 179. 



[Polytmus] graysoni Gray, Hand-list, i, 1869, 132, no. 1689. 



Amazilis graysoni Eudes-Deslongchamps, Ann. Mus. Caen, i, 1880, 402. — Bailey 

 (II. II.), Auk, xxiii, 1906, 388 (Cleofa Island, Tres Marias). 



Amizilis graysoni Oberholser, Proc. Acad. Nat. Sci. Phila., 1899, 207. 



AMIZILIS BANGSI Ridgway. 



BANGS' HUMMING BIRD. 



Similar to A. rutila rutila, but whole side of neck metallic greenish 

 bronze instead of cinnamon-rufoiis. 



Adult male. — Above bright metallic bronze-green, changing to 

 . greenish bronze, the pileum duller, inclining on forehead to dull 

 coppery bronze; upper tail-coverts cinnamon-rufous, with a large 

 median spot of metallic bronze; tail chestnut, the rectrices broadly 

 margined terminally with metallic bronze; remiges dusky, fainth^ 

 glossed with purplish; auricular region and whole side of neck metallic 

 greenish bronze; chin and throat pale cinnamon-mfous, the feathers 

 margined with pale cream-buffy; rest of under parts buffy vinaceous- 

 cinnamon medially, deepening into cinnamon-rufous laterally; biU 

 pale brownish (rosy red in life ?) ; feet brownish (in dried skins) ; 

 length (skin), 97; wing, 60; tail, 37; culmen, 22.'' 



Northwestern Costa Rica (Volcan de Miravalles) . 



Amizilis bangsi Ridgway, Proc. Biol. Soc. Wash., xxiii, April 19, 1910, 54 (VolcAn 

 de Miravalles, n. w. Co.sta Rica; coll. E. A. and O. Bangs). 



« Four specimens. b One specimen (the type). 



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