30i J)e8cri^)tions of New Species of Birds. 



In general appearance it much resembles G. macularia^ 

 wliicli species has the region of the eye naked, whereas in mine 

 these parts are fully feathered ; in macularia the sides are plain 

 ochraceoiis without stripes, the back is without the narrow 

 fulvous markings and the wing coverts are edged with fulvous, 

 these last in my species having their ends only marked with 

 triangular shaped spots. The specimen of G. macularia in the 

 Mus. of the Philadelphia Acad.^ besides the black stripe run- 

 ning from the bill down the side of the neck, has a second 

 one commencing on the chin and running parallel with the 

 other. 



Polioptila §uperciliaris, 



Male. Crown and occiput deep glossy black ; lores, superciliary stripe, 

 .and ear coverts white, the extension backward of the superciliary stripe 

 divides the black, so as to leave a narrow line of that color running hack 

 ifrom the eye ; upper plumage clear bluish grey ; the two central tail 

 feathers are black, the first outer feather is entirely white, the second 

 •white excepting a very small portion at the base, the third is black for 

 .half its length, then white to the end, the fourth is black tipped with 

 white ; quill feathers blackish brown, the primaries edged with bluish 

 ■grey and the secondaries broadly margined with white; the under 

 plumage is light plumbeous grey, paler on the throat and cheeks and 

 nearly white on the lower part of the abdomen ; the under wing coverts 

 and the inner edges of the quills are white ; bill black, the base of lower 

 jnandible light horn color ; legs and feet black. 



Length 3 J in.; wing If ; tail If ; bill /g ; tarsi -^\. 



Habitat. — New Grenada, Isthmus of Panama. 



The female differs in having the crown of the same color as 

 the back. 



It resembles P. hilineata / but that species is described as 

 being plumbeous above, white below, and having the ends only 

 of the outer tail feathers white. The color of the back in this 

 new species is very similar to that of jP. ccerulea. 



