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



Chalcostigma purpureicauda* Hartert. Purple-tailed Thorn-bill. 

 Range: Colombia. 

 Chalcostigma purpureicauda Hartert, Bull. Brit. Om. Club, VII, 1898, p. 28 



(Found in a Bogota collection); Id., Ibis, 1898, p. 291; Id., Das Tierreich, 



1900, p. 169. 



Range: Colombia. 



♦Chalcostigma stanleyi stanleyi (Bourcier). Stanley's Thorn-bill. 



Trochilus stanleyi Bourcier, Compt. Rend., XXXII, 1851, p. 187 (High Andes 



of Pichincha and Colopoxi regions). 

 Rhamphomicron stanleyi Gould, Mon. Trochil., Ill, 1852, pi. 185; Elliot, Syn. 



Trochil., 1879, p. 159; Taczanowski, Orn. Perou, I, 1884, p. 345; Salvin, Cat. 



Bds. Brit. Mus., XVI, 1892, p. 344. 

 Chalcostigma stanleyi Hartert, Das Tierreich, 1900, p. 169; Oberholser, Proc. 



U. S. Nat. Mus., XXIV, 1902, p. 335 (Papallacta and Pichincha, Ecuador); 



Rhoads, Auk, 1912, p. 148, in text (Pichincha, 13,000 ft.). 



Range: Ecuador. 

 2: "Ecuador." 



Chalcostigma stanleyi vulcani {Gould). Gould's Thorn-bill. 



Rhamphomicron vulcani Gould, Contr. Om., 1852, p. 135 (Bolivia); Id., Mon. 

 Trochil., Ill, 1861, pi. 186; Salvin, Cat. Bds. Brit. Mus., XVI, 1892, p. 345. 

 Chalcostigma vulcani Hartert, Das Tierreich, 1900, p. 170. 



Range: Bolivia. 



*&^ 



Chalcostigma olivaceum (Lawr.). Olivaceous Thorn-bill. 



Rhamphomicrum olivaceus Lawrence, Ann. Lye. N. H., N. Y., VIII, 1867, p. 44 

 (La Paz, Bolivia); Taczanowski, Om. Perou, I, 1884, p. 347; Elliot, Syn. 

 Trochil., 1879, p. 158; Sharpe in Gould's Mon. TrochU., Suppl., 1883, pi. 

 44; Salvin, Cat. Bds. Brit. Mus., XVI, 1892, p. 344. 



Chalcostigma olivaceum Hartert, Das Tierreich, 1900, p. 170. 



Range: Peru. 

 *Chalcostigma ruficeps ruficeps {Gould) . Rufous-capped Thorn-bill. 



Trochilus ( ?) ruficeps Gould, Proc. Zool. Soc. Lond., 1846, p. 89 (Bolivia). 



Rhamphomicron ruficeps Gould, Mon. Trochil., Ill, 1852, pi. 188; Elliot, Syn. 



Trochil., 1879, p. 160; Taczanowski, Orn. Perou, I, 1884, p. 348; Salvin, 



Cat. Bds. Brit. Mus., XVI, 1892, p. 346, 



■ Chalcostigma purpureicauda Hartert: Male. Above deep green with metallic 

 bluish gloss; tail rich purple; outer rectrix narrowly tipped with buff; middle pair 

 rectrices metallic greenish blue towards the tips; underparts green, the feathers 

 bordered with rusty brown and the belly almost entirely rusty brown; middle of chin 

 and throat glittering green; under tail coverts purplish blue, broadly edged with 

 rusty buff. The shape of the bill somewhat resembles that of Opisthoprora, being 

 distinctly turned upward before the tip. The irregular shape of the glittering green 

 spot on throat and the rusty edges on feathers of the under parts may be due to 

 immaturity. Wing, 71; outer rectrices, 54; mid. rectrices, 40; exposed culmen, 

 13-5 I". 



