492 BIRDS OF BRITISH GUIANA. 



G57. Tanagra cayennensis. 

 Cayenne euphonia. 



Tunaqra cnymnensis Gmel. Syst. Nat. i. ]). 894, 17S9 (" Brasilia ") ; 

 Brabourno & Chubb, B. 8. Amer. i. p. 402, no. 4133, 1912; Beobo, 

 Tro})ical Wild Life in British Guiana, p. 13G, 1917 (Bartiea). 



Unpliona cayennensis Cab. in Schomb. Iveis. Guian. iii. p. U71, 1848. 



Huphonia cayann Salvin, Ibis, 1885, p. 208 (Bartiea Grove, Camacusa) ; 

 Scl. Cat. B. Brit. Mus. xi. p. 81, 188G (Camacusa, Bartiea Grove). 



Adult male. General colour both on the upper and under 

 surface steel-blue with purplish reflections on the top of the head, 

 hind-neck, and throat ; inner webs of flight-quills blackish mar- 

 gined with white ; tail similar to the back ; sides of breast 

 orange-yellow ; axillaries, under wing-coverts, and inner edges 

 of flight-quills below white, the outer or marginal under wing- 

 coverts steel-blue ; under surface of flight-quills blackish brown. 



Total length 102 mm., exposed culmen 8, wing GO, tail 35, 

 tarsus IG. 



The male described was collected on the Ituribisi River in 

 1009. 



Adult female. General colour of the upper surface yellowish 

 olive ; inner webs of flight-quills blackish with white margins ; 

 inner webs of tail-feathers also blackish ; cheeks, throat, and 

 middle of abdomen dark ash-grey ; sides of breast, flanks, and 

 under tail-coverts old-gold bronze ; axillaries, under wing-coverts, 

 and inner edges of quills below white ; remainder of quills below 

 and lower aspect of tail dark brown. AVing G2 mm. 



The female from which the description is taken was collected 

 on the Ituribisi River in October 1908. 



The young male in its first plumage is similar to that of the 

 female. There are two young birds from the Great Falls 

 Demerera River which are in the course of transition, showing 

 the approach of steel-blue feathers both on the u})per and under 

 jjarts and the orange-yellow patch on the sides of the breast. 



Breeding-season. Unknown in British Guiana. 



Nest. Unrecorded in British Guiana. 



Eggs. Undescribed from British Guiana. 



Range in British Guiana. Ituribisi River, Supenaam River, 

 Kamak'abra River, Bonasika River, Anarica River, Arawai 

 River, Great Falls Demerara River, Tiger Creek, Essequebo 

 River {McConnell collection) ; Kamakusa, Bartiea {Whitely). 



