17. BASILEUTERIJS. 385 



the upper and under margin of the eyelid white ; lores dusky 

 blackish, as well as the anterior and posterior margins of the eyelid 

 and the upper edge of the ear-coverts ; the latter bluish grey, more 

 silvery gre}' on the lower parts ; cheeks and under surface of body 

 bright pale yellow, a little more olive on the sides of the body and 

 thighs ; under tail-coverts white, slightly washed with yellow ; 

 under wing-coverts and axillaries white, the edge of the wing 

 j-ellower ; quiUs dusky below, ashy white along the edge of the 

 inner web. Total length 4*8 inches, culmen 0-5, wing 2-25, tail 

 2*0.5, tarsus 0-75. 

 Huh. Colombia. 



a. (S ad. sk. Minca, SieiTa Nevada of Salvin-Godman Collection. 

 Santa Marta, March {F. 



Simons). 



8. Basileuterus tristriatus. 



Myiodioctes tristriatus, Tschudi, Faun. Peruan. p. 193, Taf. 14. fig. 1 



\1855). 

 Basileuterus tristriatus, Bii. Consp. i. p. -314 (18-50) ; Tacz. Orti, 



Perou, p. 47 :i (1884J. 



Adult male. General colour above dull olive-green, a litile clearer 

 on the rump and upper tail-coverts ; lesser wing-coverts like the 

 back ; median and greater coverts dusky, edged with the same colour 

 as the back and slightly tipped with yellowish white ; bastard-wing 

 and pi'imary-covcrts dusky brown, with obsolete fringes of dull olive- 

 yellow ; quills dusky, externally edged with the same colour as the 

 back, a little brighter olive-yellow on the primaries, the first one of 

 which is whity brown along the outer web ; tail-feathers dusky, 

 edged with olive ; centre of crown pale ochre shaded with ashy 

 olive, and with brighter yellow bases, this central streak bordered 

 by a broad band of black, reaching from the base of the bill, where 

 it narrows, to the sides of the hind neck, and enclosing the occiput, 

 nape, and hind neck, which are ashy olive ; a narrow eyebrow of 

 ashy olive skirting the black band from the base of the bill to the 

 hind neck and becoming dull whitish above the lores ; feathers 

 below the eye and eyelid dull whitish ; lores and ear-coverts 

 dusky blackish ; cheeks and throat pale yellow ; the chin white, 

 washed with yellow, which gradually deepens on the lower throat 

 and centre of the body, becoming brighter yellow on the abdomen 

 and again a little paler on the under tail-coverts ; sides of body 

 olive-greenish ; axillaries and under wing-coverts pale yellow, with 

 ashy bases ; quills dusky below, ashy whitish along the edge of the 

 inner web. Total length 4-9 inches, culmen 0-45, wing 2-45, tail 

 2'1, tarsus 0"7o. 



Adult female. Similar to the male, but the coronal streak brighter 

 yellow, the lateral stripes on the crown and the ear-covcrts deeper 

 black ; a few dusky spots on the sides of the throat, almost obsolete 

 in the male. Total length 4-9 inches, culmen 0-6, wing 2-4.5, tail 2, 

 tarsus 0-8. 



VOL. X. 2c 



