222 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



Rather large Vireonidse (wing more than 70 mm.), with rather large 

 and elongated, strongly uncinate bill, its depth at frontal antise nearly 

 equal to its width at same point; inner toe (without claw) as long as 

 or longer than hallux (without claw), its claw reaching to decidedly 

 beyond base of middle claw; color bright parrot green above with blue 

 on crown, or else a bright yellow superciliary stripe. 



Bill large, elongated (exposed culmen nearly to more than one- 

 fourth as long as wing, commissure decidedly longer than middle toe 

 with claw), nearly as broad as deep at base; culmen nearly straight 

 basally (sometimes for most of its length), strongly decurved termi- 

 nally, the tip of maxilla conspicuously uncinate; maxillary tomium 

 nearly straight, distinctly notched subterminally ; mandibular tomium 

 more faintly notched, the tip of the mandible produced into an ascend- 

 ing point. Nostril exposed, obliquely or horizontally oval, in lower 

 anterior portion of nasal fossse, the membrane broadest behind it. 

 Rictal bristles inconspicuous, the largest not better developed than 

 bristly points of frontal feathers. Wing rather short and rounded; 

 tenth (outermost) primary nearly half to more than half as long as 

 ninth, the latter not shorter than first, sometimes longer than second; 

 eighth to fifth longest. Tail much shorter than wing (the difference 

 usually nearly equal to length of tarsus, sometimes much less), even 

 or very slightly rounded or double-rounded. Tarsus much longer 

 than middle toe with claw (much more than one-fourth but less than 

 one-third as long as wing), distinctly scutellate anteriorly; outer toe 

 longer than inner, the latter (without claw) as long as or slightly 

 longer than hallux (with claw); both lateral claws reaching decidedly 

 beyond base of middle claw. 



Coloration. — Above bright parrot green with or without blue on 

 pileum, or olive-green with pileum gray bordered laterally by a super- 

 ciliary stripe of yellow; beneath green or greenish yellow with yellow 

 throat, entirely yellow, or white with a chestnut-rufous band across 

 chest. 



Range. — Continental tropical America. 



KEY TO THE SPECIES AND SUBSPECIES OF VIEEOLANItTS. 



a. Above bright parrot green, with or without blue on pileum; beneath light yel- 

 lowish green, the throat yellow. 

 6. No yellow on sides of head (except, sometimes, an indistinct rictal streak). 

 ^ ( Virmlanms pulchellus. ) 

 c. Forehead blue. 

 d. Whole pileum and hindneck blue, the center of crown sometimes green. 

 (Southern Mexico to Guatemala.) 



Vireolauius pulchellus pulchellus (p. 223) 



eld. Only the forehead and part of hindneck blue, the entire crown green. 



(Nicaragua and Costa Rica.) ...Vireolauius pulchellus vertiealis (p. 224) 



cc. Forehead green (together with entire crown and occiput and greater part of 



hindneck). ( Veragua to Panama. ) .Vireolauius pulchellus viridiceps (p. 224) 



