286 Field Museum or Natural History — Zoology, Vol. XIII. 



Schistes geoffroyi Gould, Mon. Trochil., IV, 1853, pi. 218; Elliot, Syn. Trochil., 

 1879, p. 173; Salvin, Cat. Bds. Brit. Mus., XVI, 1892, p. 34; Hartert, Das 

 Tierreich, 1900, p. 185; Chapman, Bull. Am. Mus. N. H., XXXVI, 1917, 

 p. 310 (El Roble, Colombia).* 



Range: Colombia, Ecuador and Bolivia. 



4: "Colombia." 



*Schistes albogularis Gould. White-throated Wedge-bill. 



Schistes albogularis Gould, Contr. Orn., 1851, p. 140 (Pichincha, Ecuador); 

 Id., Mon. Trochil., IV, 1853, pi. 220; Sclater, Proc. Zool. Soc. Lond., i860, 

 p. 70; Salvin, Cat. Bds. Brit. Mus., XVI, 1892, p. 34; Hartert, Das Tier- 

 reich, 1900, p. 185; Oberholser, Proc. U. S. Nat. Mus., XXIV, 1902, p. 339, 

 crit. (Milligalli, western Ecuador) ; Chapman, Bull. Am. Mus. N. H., XXXIV, 

 p. 310 (Las Lomitas; San Antonio and Miraflores). 



Schistes personatus Gould, Proc. Zool. Soc. Lond., i860, p. 311; Id. Mon. 

 Trochil. IV, 1853, pi. 219; Elliot, Syn. Trochil., 1879, P- I73- 



Range: Colombia and Ecuador (probably from central Andes, 



westward) . 



I : Colombia? 



Genus HELIOTHRYX" Boie. 



Heliothryx Boie, Isis, 1831, p. 547 (Type Trochilus auritus Gmelin). 



*Heliotlu7x aurita aurita (Gmelin). Black-eared Fairy. 



Trochilus auritus Gmelin, Syst. Nat., I, 1788, p. 493 ("Cayenna"). 



Ornismya aurita Lesson, Hist. Nat. Ois.-Mouches, 1829, pp. 19, 63, pis. 14, 11. 



Heliothrix auritus Boie, Isis, 1831, p. 547; Gould, Mon. Trochil., 1853, pi. 213; 

 Elliot, Syn. Trochil., 1879, p. 174; Salvin, Cat. Bds. Brit. Mus., XVI, 

 1892, p. 30; Hartert, Das Tierreich, 1900, p. 186; Berlepsch and Hartert, 

 Nov. Zool., IX, 1902, p. 88; Oberholser, Proc. U. S. Nat. Mus., XXIV, 

 1902, p. 339 (Archidona, Rio Napo, Ecuador); Berlepsch. Nov. Zool., XV, 

 1908, p. 265 (Cayenne); Chubb, Bds. Brit. Guiana, 1916, p. 420. 



Heliothrix colombianus Boucard, Gen. Humming Bds., 1894, p. 313 (Colombia 

 and Ecuador). 



Range: Guiana, Venezuela, Colombia, extreme northern Brazil, 

 Ecuador and northern Peru. 



6: British Guiana 2; northern Brazil (base of Serra da Lua, near 

 Boa Vista, Rio Branco) i ; Colombia 3. 



» "All the Colombia skins I have seen of this species appear to be from the 

 Bogota region where alone we found it. In the Cauca Valley we collected only the 

 representative species, S. albigularis, a fact which indicates that the type locality 

 given for geoffroyi is incorrect." (Chapman, I.e.). 



^ — Key to the Species and Subspecies of Heliothryx. 



A — Crown green 



a — Chin and throat white H. aurita aurita 



b — Chin green ; throat white H. aurita auriculata 



c — Chin and throat green H. aurita phainolaema 



B — Crown violet blue H. barroti 



