HTLOPHILUS. 



3T3 



Hylophilus viridifiavus, Lawr. (Panama.) 



feathers frequently considerably pointed. Primaries but little longer than 

 secondaries ; the 1st 

 about half the 2d, 

 which generally equals 

 the secondaries ; the 4th 

 and 5th longest. Bill 

 more conical than in 

 Vireo ; the culmen curv- 

 ing very slightly, some- 

 times nearly straight to 

 the but little decurved 

 tip, the notch of which 

 is long and shallow. 

 Bristles of mouth less 

 developed. Legs length- 

 ened ; claws very sharp 

 and larger than in 

 Vireo ; hind toe longer ; 



both the lateral claws reaching beyond base of middle claw ; the outer beyond 

 the middle of the claw. Adhesion of toes as in Vireo. 



This genus is easily distinguished from the Yireos by the conical, 

 more acute bill, but slightly decurved at tip, more arched com- 

 missure, longer hind toe, much larger claws, and a more rounded 

 wing than usual in Vireo. In the character of the feet it comes 

 quite near Laletes. 



The species of Hylophilus which I have had the opportunity of 

 examining agree very well in general characters, the principal varia- 

 tion consisting in trifling differences in the proportions of the quills 

 and length and graduation of tail. The first quill is usually less 

 than half the longest : in insularis it is more than half The tail 

 in the type is longer than the wing ; in others it is about equal ; in 

 a few species it is shorter. 



The following synopsis expresses the characters of the species 

 known to me : — 



Common Characters. — General color of upper parts olive green, the head, or 

 at least the forehead, usually diifering in having an ochrey or rufous wash, 

 sometimes seen on the tail or back, sometimes wanting ; the forehead gener- 

 ally more yellowish. No bands on wings or tail. Under parts whitish, 

 yellowish, or olivaceous. Bill generally pale. Legs flesh color or plumbeous* 



A. Head and nape above uniform cinnamon brown. Fore- 

 head not difierent. 



Rufovis of head confined to upper surface. Under parts 



fulvous yellowish. Legs dusky .... pcecilotis. 



