128 Genera of Humming Birds. 



breast and flanks. Tail steel-black, nearly even, lateral 

 rectrices tipped with gray. Bill black. 



Several of my specimens of this species were collected by 

 Mr. H. Whitely, at Roraima, British Guiana. 



I have placed Chlorostilbon subfurcatus, Berlepsch, as a 

 synonym of Prasitis prasinus, because I have not been able 

 to see any difference between the specimens from Cayenne 

 and those of Roraima. 



^178. Prasitis stuebeli, Mey., Z., Gen. Ornith., 1884, p. 206. 

 Stuebel's Emerald, Gould, Mon. Troch., Suppl., 1886, p. 99. 

 /' Emeraude de Stuebel. 

 Habitat. — Yungas, Bolivia. 



Male. — Upper surface bronzy-green, head coppery ; below 

 golden-green, the breast bluish. Wings purplish-brown. Tail 

 black, tinged with violet-purple. Bill black. 



Total length, 3fin. Wing, i -fg. Tail, i. Culmen, \. 



This species belongs to the genus Prasitis, on account 



of the form of its tail, which is slightly emarginated, the 



rectrices beingr rather broad. It resembles more C. atala 

 than any other species. 



This rare species was discovered in Bolivia, by Doctor 

 Stuebel, and dedicated to him, by Doctor Adolf Meyer, of 

 Dresden. 



The type is at the Museum of Dresden. 



179. Prasitis daphne, Bon. Rev. Zool., 1854, p. 255. 



Trochilus phaeopygos, Tsch. Faun. Per., p. 247,. 



Metallura phaeopygos, Reich., Aufz. der Col., p. 8. 



Chlorostilbon napensis, Gould, Intr. Troch., 1861, p. 177. 



Chlorostilbon periianiis, Gould, Intr. Troch., 1861, p. 177. 



Chlorostilbon brevicaudatuSjGonXd, Intr. Troch, 186 1, p. 178. 



Peruvian E7nerald. 



I' Emeraude du Perou. 



Habitat. — Trinidad, Guiana, Peru. 



Male. — Upperside golden-green. Uppertail-coverts shining 

 green. Throat metallic green, with bluish reflections. Breast, 

 sides of neck, and abdomen metallic golden. A patch of 



