Mexico^ Central America^ and South America. 5 



white, tbiglis light ashy brown ; upper mandible black, the under 

 yellow, with the tip brown ; tarsi and toes brown. 



Length (skin) i^ in. ; wing 2^; tail IJ ; bill y'L ; tarsi f. 



Ilahltat. Tres Marias Islands, Mexico. Collected by Col. 

 A. J. Grayson.. Type in Mns. Smithsonian Institution, No. 

 50796. Four specimens in the collection are all males. 



In the collection made by Col. Grayson at Socorro Island, 

 are eight specimens of Parula^ only one of which has the sex 

 indicated, viz., No. 50804, a female ; they are probably the 

 same as the males from the Tres Marias ; they differ in havino; 

 the upper plumage more gray, scarcely showing any shading of 

 blue, but with the rump tinged with greenish-yellow, and the 

 quills and tail feathers edged with the same color ; below they 

 are of a paler yellow ; all the Socorro Island birds are much 

 alike, which may be due to seasonal change, as it is not pro- 

 bable that all the specimens are females. 



Reinarlis. Col. Grayson says of this species, " perhaps 

 Parula jpitiayximi^'' but they are verydistinct. That species 

 is of a deeper and more decided blue above than all others of 

 the genus, whereas the present bird is paler. P. jyltiayumi is 

 entirely of a deep yellow below, with the lores a decided black ; 

 in the present species the lower part of the abdomen is whitish 

 and the lores dusky ; it also has the tail longer and the wings 

 shorter than those of P. jpitiayumi. 



Note hy Col. Grayson. 



"Iris brown; bill black above, dull yellow below towards 

 the base and black at tip; feet brown, with yellow soles, claws 

 dark brown ; indistinct shady bars across the upper part of tail 

 feathers. This bird seems to be identical with the Tres Marias 

 species, and is quite common on the Socorro; it is a little larger 

 than the Marias' bird, and less white at the extremities of the 

 tail feathers." 



