176 Field Museum of Natural History — Zoology, Vol. XIII, 



Agjnrtrina viridiceps (Gould). Green-headed Emerald. 



Thaumatias viridiceps Gould, Proc. Zool. Soc. Lond., i860, p. 307 (Ecuador); 



Id., Mon. Trochil., V, 1861, pi. 295. 

 Agyrtria viridiceps Salvin, Cat. Bds. Brit. Mus., XVI, 1892, p. 181; Chapman, 

 Bull. Am. Mus. N. H., XXXVI, 1917, p.286 (Ricaurte, southwestern Colombia). 



Range: Western Ecuador and southwestern Colombia. 

 2: Ecuador (Paramba). 



*Agyrtrina milleri {Bourcier). Miller's Emerald. 



Trochilus milleri Bourcier, Proc. Zool. Soc. Lond., 1847, p. 43 (Rio Negro). 

 Thaumatias milleri Gould, Mon. Trochil., V, 1859, p. 296. 

 Agyrtria milleri Elliot, Syn. Trochil., 1879, p. 203; Salvin, Cat. Bds. Brit. Mus. 

 XVI, 1892, p. 182 . 



Range: Northern Brazil, Venezuela and Colombia. 



2 : Colombia. 



Agyrtrina hollandi (Todd).^ Holland's Emerald. 



Agyrtria hollandi Todd, Proc. Biol. Soc. Wash., XXVI, 191 3, p. 173 (El Dorado, 

 Rio Cuyuni, Venezuela). 



Range: Venezuela. 

 Agyrtrina nitidifrons (Gould). Brillant-fronted Emerald. 



Thaumatias nitidifrons Gould, Proc. Zool. Soc. Lond., i860, p. 308 (Type 

 locality? = Para''?); Id., Mon. Trochil., X, 1861, p. 297. 



Agyrtria nitidifrons Elliot, Syn. Trochil., 1879, p. 205; Salvin, Cat. Bds. Brit. 

 Mus., XVI, 1892, p. 183; Hellmayr, Nov. Zool., XIII, 1906, p. 376. 



Range: Northeastern Brazil. 

 *Agyrtrina bartletti (Gould). Bartlett's Emerald. 



Thaumantias bartletti Goxn.D, Proc. Zool. Soc. Lond., 1866, p. 194 (Upper 



Ucayah, eastern Peru). 

 Agyrtria bartletti Elliot, Syn. Trochil., 1879, p. 205; Sharpe in Gould's Mon. 



Trochil., 1885, pi. 50. 



Range: Eastern Peru. 



4: Peru (Rioja i, Moyobamba i, and San Ramon 2). 



*Agyrtrina lactea (Lesson). Sapphire-breasted Emerald. 



Ornismya lactea Lesson, Hist. Nat, Ois.-Mouches, 1829, pi. 56 (Southeastern 

 Brazil). 

 Ilylocharis lactea Salvin, Cat. Bds. Brit. Mus., XVI, 1892, p. 247. 



Range: Southeastern Brazil. 

 2: "Brazil." 



• Agyrtrina hollandi (Todd): "With a general resemblance to A. milleri (Bour- 

 cier), but crown bright blue (not greenish blue); under parts less extensively white; 

 sides of the throat and breast prominently spangled with light blue; and upper 

 parts much darker green." (Todd, I.e.). 



» Cf. Hellmayr, I.e. 



