igiS. Catalogue of Birds of the Americas — Cory. 175 



Genus AGYRTRINA" Chubb. 



Agyrtrina Chubb, Bds. Brit. Guiana, I, 1916, p. 395 (Type Uranomitra whitelyi 

 Boucard); substitute name for Agyrtria Reichenbach, etc. 



*Agyrtrina chionopectus chionopectus Gould. White-breasted 



Emerald. 



Thaumatias chionopectus Gould, Mon. Trochil., V, 1859, pi. 293 (Trinidad). 

 Agyrtria niveipectus Elliot, Syn. Trochil., 1879, p. 202; Salvin, Cat. Bds. Brit. 



Mus., XVI, 1892, p. 180. 

 Agytria chionopectus Ridgway, Bull. U. S. Nat. Mus., No. 50, V, 191 1, p. 431, in 



key. 



Range: Trinidad and coast of Venezuela. 

 2: Trinidad i; and Venezuela? i. 



*Agyrtrina chionopectus whitelyi (Boucard).^ Whitely's Emerald. 



Uranomitra whitelyi Boucard, The Humming Bird, III, 1893, p. 8 (Aunai, 



British Guiana). 

 A. chionopectus whitelyi Hartert, Das Tierreich, Trochil., 1900, p. 42. 

 Agritrina whitelyi Chubb, Bds. Brit. Guiana, I, 1916, p. 397. 



Range: British Guiana. 



2 : British Guiana. ' 



Agyrtrina leucogaster leucogaster (Gmel.). White-bellied Emerald. 



Trochilus leucogaster Gmelin, Syst. Nat., I, 1788, p. 495 (Cayenne). 



Thaumatias leucogaster Gould, Mon. Trochil., V, 1859, pi. 294. 



Agyrtria leucogaster Elliot, Syn. Trochil., 1879, p. 202; Salvin, Cat. Bds. Brit. 



Mus., XVI, 1892, p. 181. 

 Agyrtrina leucogaster leucogaster Chubb, Bds. Brit. Guiana, I, 1916, p. 397. 



Range: Dutch and French Guiana; British Guiana (Chubb). 

 *Agyrtrina leucogaster bahiae" (Hartert). Bahian Emerald. 



Agytria leucogaster bahiae Hartert, Orn. Monatsb., VII, 1899, p. 140 (Bahia). 

 A. leucogaster bahiae Hartert, Das Tierreich, Trochil., 1900, p. 43. 



Range: Eastern Brazil, 

 i: Brazil (Bahia). 



» The following described species are supposed to be hybrids: Agyrtria neglecta 

 (Elliot), Ibis, 1877, p. 140, Bolivia =i4g3'r/na versicolor XHylocharis cyanus {cf. 

 Simon and Hellmavr, Nov. Zool., XV, 1908, p. i); Agyrtria caeruleiceps (Gould) 

 Proc. Zool. Soc. Lond., i860, p. 307, Colombia; Salvin, Cat. Bds. Brit. Mus., XVI, 

 1892, p. 183, pi. VII, fig. 1= Agyrtria milleriXchrysuronia aenone^ longirostris (cf. 

 Simon, Rev. Franc. d'Orn., No. 12, 1910, p. 178. 



^Agyrtrina chionopectus whitelyi Boucard: Differs from A. c. chionopectus 

 Gould, in its somewhat darker coloration, most noticeable in head and tail. 



"Agyrtrina leucogaster bahiae (Hartert): Differs from A. I. leucogaster (Gmel.) 

 from British Guiana in being smaller, bill shorter and tail darker and less greenish. 

 Wing, 52 to 54; bill, 20 mm. 



