AXTHRACOTHORAX. 411 



large numbers and hovers round the flowering Or'iuoho trees 

 i^^= Erythrina) . 



Mr. J. J. Quelch, who observed this species in Georgetown, 

 remarks (Timehri (2) v. p. 99): — "The Mango Humming-bird 

 {Lampornis violiccuida) is extremely common about the town." 



279. Anthracotliorax viridig-ula. 

 Green-throated Maxgo. 



TrocJiilus viridicjula Bodd. TabL PL Enl. p. 41, 1783 (Caj-enne). 



Trochilus gramineus GmeL Syst. Nat. i. p. 488, 1788 (Gruiana). 



Lampornis gvommineus Salviu, Ibis, 1885, p. 432 ; Quelch, Timehri (2) 

 V. p. 99, 1891 (G-eorgetown) ; Salvin, Cat. B. Brit. Mus. xvi. p. 95, 

 1892 (Demerara) ; Brabourne & Chubb, B. S. Araer. i. p. 123, 

 no. 1196, 1912. 



Trochilus pectoralis Cab. in Schomb. Reis. Guiau. iii. p. 70G, 1848. 



" Mango Humming-bird " {Qxielcli). 



Adult male. General colour above green ; flight-quills dark 

 brown ; middle tail-feathers dark brown with a steel-green gloss, 

 outer feathers purple with dark edgings ; throat and sides of neck 

 rich glittering green ; abdomen blackish more or less tinged with 

 green, like the under tail-coverts and under wing-coverts ; thighs 

 and a patch on the sides of the body pure white. 



Total length 122 mm., culmen 27, wing 70, tail 38. 



Adult female. Differs from the adult male in being white on 

 the under surface w^ith a broad black line on the throat extending 

 down the middle of the abdomen, and in having white tips to the 

 outer tail-feathers which are preceded by a steel-blue band. 



Immature male. Similar to the adult female, but differs in 

 having chestnut on the cheeks and sides of the neck. 



Of the h)irds described, the adult and immature males are from 

 the Abary River and the female from the Great Savannas. 



Breeding-season. Unknown in British Guiana. 



Nest. Unrecorded in British Guiana. 



Eggs. Undescribed from British Guiana. 



Jiange in British Guiana. Abary River, Great Savannas, 

 Great Falls Demerara River (McConnell collection) ; Georgetown 

 {Quelch). 



E.cfralimital Range. Cayenne ( lioddaerl) ; Venezuela, Norlhorn 

 Brazil. 



llahtts. Schomburgk states (Reis. (iuian. iii. jt. 70('>) Ihnt he met 



