39 G BIRDS OF BRITISH GUIANA. 



Aijyrlvia viridissima Salvin, Cat. B. Brit. Mus. xvi. p. ISG, 1S92. 

 A(jyrtria Jimhriata Brabourne & Chubb, B. S. Amer. i. p. 113, no. 1082, 

 1912. 



Adult male. Upper surface bronze-green, darker on the Lead 

 and tail, the hitter having somewhat paler tips to the lateral 

 feathers, brighter and more glittering on the under surface ; 

 middle of abdomen, vent, and under tail-coverts greyish white ; 

 Hight-fcathers brown. 



Total length 98 mm., culmen 19, wing 55, tail 30. 



The description of the male is taken from an example collected 

 by Mr. McConnell at Mount Horaima in 1898. 



Adult female. Differs from the adult male only in having the 

 tips of the outer tail-feathers grey. Wing 53 mm. 



The description of the female is taken from an example collected 

 at Bartica. 



Breeding-season. Unknown in British Guiana. 



Nest. Unrecorded in British Guiana, 



Eggs. Undescribed from British Guiana. 



Range in British Guiana. Mount Roraima, Upper Takutu 

 Mountains, Supenaam Eiver, Bartica, Abary River {McConnell 

 collection) ; Merume Mountains, Mount lloraima, 3500 ft., Bartica 

 ( Whitely) ; Georgetown [QnelcJi). 



Extraliniital Range. Northern Brazil, Eastern Venezuela, and 

 Trinidad. 



Ilahits. Mr. J. J. Quelch observed this bird in Georgetown, and 

 remarks (Timehri (2) v. p. 100) : — " This species is not so common 

 as Agyrtria leucogaster.''^ 



267. Ag-yrtrlna leucogaster. 

 White-bellied Emerald. 



Trochilus leiccogaster Gmel. Syst. Nat. i. p. 495, 1788 ("Cayenna"); 



Cab. in Schomb. Reis. Guian. iii. p. 705, 1848 ; Quelch, Timehri (2) 



v. p.' 100, 1891 (Georgetown). 

 Agyrtria leucoyaster Salvin, Cat. B. Brit. Mus. xvi. p. 181, 1892 



(Demerara) ; Brabourne & Chubb, B. S. Amer. i. p. 112, no. 1073, 



1912. 



Adult male. General colour above green, more glittering on the 

 head and sides of the neck, and more coppery bronze on the upper 

 tail-coverts and middle tail-feathers ; outer tail-feathers steel-blue ; 

 flight-feathers brown ; throat, middle of breast, abdomen, and 

 under tail-coverts white ; sides of breast and sides of body green. 

 ' Mandible, except the tip, flesh-colour.^' 



