420 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 
Adult female.—Length (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 (Pyrrhophena) graysoni Lawrence, Ann. Lyc. Nat. Hist. N. Y., viii, 
1866, 404 (Tres Marias Islands, w. Mexico; coll. U. 8. Nat. Mus.). 
Pyrrhophxna graysont LAWRENCE, Proc. Bost. Soc. N. H., xiv, 1871, 283; Mem. 
Bost. Soc. N. H., ii, 1874, 292. 
Amazilia graysont Goutp, Ibis, 1867, 247.—Muusant and VERREAUX, Hist. Nat. 
Ois.-Mouch., i, livr. 4, 1874, 286; iv, livr. 3, 1878, 180.—Euio7, Classif. and 
Synop. Troch., 1879, 219.—p’HamonviLLeE, Bull. Soc. Zool. France, xi, 
1886, 313 (reprint, p. 11; descr.; crit.) —SHarpe, in Gould’s Mon. Troch., 
Suppl., 1887—Ripeway, Rep. U. 8. Nat. Mus., 1890 (1891), 364.—Sazvin, 
Cat. Birds Brit. Mus., xvi, 1892, 209.—Satvin and Gopman, Biol. Centr.- 
Am., Aves, ii, 1892, 294.—Bovucarp, Gen. Hum. Birds, 1894, 195.—Ne.son, 
North Am. Fauna, no. 14, 1899, 45 (habits; crit.). 
[Amazilia] graysont SctatER and Satvin, Nom. Av. Neotr., 1873, 92.—Mu.sant, 
Ann. Soc. Linn. Lyon, xxii, 1876, 206.—SHarps, Hand-list, ii, 1900, 109. 
A[mazilia] graysoni Ripaway, Man. N. Am. Birds, 1887, 318; Rep. U. 8. Nat. 
Mus., 1890 (1891), 364 (diagnosis, etc.)—Harrert, Das Tierreich, Troch., 
1900, 61 (monogr.). 
[Eranna] graysont Herne and ReicHenow, Nom. Mus. Hein. Orn., 1890, 179. 
[Polytmus] graysoni Gray, Hand-list, i, 1869, 132, no. 1689. 
Amazilis graysoni EupEs-DEsLtonecHamps, Ann. Mus. Caen, i, 1880, 402.—BainEy 
(H. H.), Auk, xxiii, 1906, 388 (Cleofa Island, Tres Marias). 
Amizilis graysonti OBERHOLSER, Proc. Acad. Nat. Sci. Phila., 1899, 207. 
AMIZILIS BANGSI Ridgway. 
BANGS’ HUMMING BIRD. 
Similar to A. ruta rutila, but whole side of neck metallic greenish 
bronze instead of cinnamon-rufous. 
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, faintly 
glossed with purplish; auricular region and whole side of neck metallic 
greenish bronze; chin and throat pale cinnamon-rufous, the feathers 
margined with pale cream-buffy; rest of under parts buffy vinaceous- 
cinnamon medially, deepening into cinnamon-rufous laterally; bill 
pale brownish (rosy red in life?); feet brownish (in dried skins); 
length (skin), 97; wing, 60; tail, 37; culmen, 22.° 
Northwestern Costa Rica (Volcén de Miravalles). 
Amizilis bangsi Ripaway, Proc. Biol. Soc. Wash., xxiii, April 19, 1910, 54 (Vole4n 
de Miravalles, n. w. Costa Rica; coll. E. A. and O, Bangs). 
4 Four specimens. > One specimen (the type). 
