VIREOSYLVIA. 



341 



Vireosylvia philadelphica. 



12 (Guatemala). — Vireo philadcJphicus, Baird, Birds N. Am. 1S58, 

 335, pi. 78, fig. 3. 

 Vireosylvia cobanerisis, Sclater, P. Z. S. 1860, 463 (Cobau). — Ib. Ann. 

 Mag. N. H. 1861, 328. 



Hab. Eastern North America to Hudson's Bay and Maine, south to Costa 

 Rica and Guatemala. Not recorded from Mexico or West Indies. 



(No. 20,643, % .) Above dark olive green, tinged with plumbeons ash ex- 

 cept on the rump ; top of head and nape purer plumbeous ash, not edged with 

 dusky, the line of demarcation in- 

 distinct. Beneath light sulphur 

 yellow, paler and almost white on 

 chin and middle of abdomen; sides 

 more olivaceous. A whitish stripe 

 from bill over eye, as also a patch 

 beneath it and the eyelids ; a dusky 

 loral and post-ocular spot. Quills 

 and rectriees brown, edged exter- 

 nally with olive, internally with 

 whitish ; the larger coverts with 



paler outer edges. Bill blackish, paler plumbeous below. Legs plumbeous. 

 Spurious outer or first quill (seen in gilva) wanting; the outer about equal 

 to 5th ; 3d longest ; 2d and 4th not much shorter. 



(No. 20,643,- % .) Total length, 4.80 ; wing, 2.65 ; tail, 2.25 ; difi"erence be- 

 tween outer and longest primary, .28, of longest and innermost, .62; length 

 of bill from forehead, .54, fi-om nostril, .30, along gape, .61 ; tarsus, .65 ; middle 

 toe and claw, .52 ; bind toe and claw, .44. 



Specimens vary somewhat in purity of tints, and especially in in- 

 tensity of yellow of under parts, which color is deeper in autumnal 

 skins. 



I regret that I led Mr. Sclater into an error by informing him that 

 the FiVeo subsequently described by him as V. cobanensis was differ- 

 ent from V. philadelphica. The skin forwarded for examination by 

 him appeared to differ in some noticeable points, but those subse- 

 quently received from Mr. Salvin and other sources agree exactly 

 with specimens from Wisconsin and Hudson's Bay. 



(18,572.) Type o{ V. cobanensis. (3.S,300.) Iris brown. 



