230 FIELD MUSEUM OF NATURAL HISTORY ZOOLOGY, VOL. IX. 



First primary, not short; lores and eye ring, yellow; throat and 

 breast, yellow ; belly, white ; wing bars, white. Lanivireo flavifrons. 



Yellow-throated Vireo. 

 See No. 296. 



First primary, equal to fifth; lores and orbital ring, dull white; 

 upper plumage, light olive, tinged with ashy on the crown; under parts, 

 washed with very pale yellow; no white wing bars. 



Vireosylva philadelphica. 

 Philadelphia Vireo. 

 See No. 294. 



