492 NORTH AMERICAN BIRDS. 



gray above, the lores less deej^ly black in male and more de- 

 cidedly grayish in female; wing 2.15-2.30, tail 1.90-2.00. Hah. 

 Tres Marias Islands, western Mexico. 



C. insularis (Lawr.). Tres Marias Parula.^ 

 (P. Above dull slate-gray (tinged with olive in females), the back dull 

 olive-green ; lores dull grayish ; white wing-bands much nar- 

 rower (nearly obsolete in som-e females) ; yellow and white of 

 lower parts both much duller; white spots on inner webs of 

 outer tail-feathers reduced to a mere edging (except in a few 

 males, in which the white oblique spot is much smaller than 

 in a insularis); wing 2.10-2.20, tail 1.90-2.00. Hab. Socorro 

 Island, off coast of northwestern Mexico. 



C. graysoni Eidgw. Socorro Warbler.' 

 }/. Belly wholly yellow; wing without white bands, or with mere indications 

 of them. 



Adult (sexes apparently alike in color) : Above dark grajash blue (almost 

 indigo on top of head) ; lores deep black ; lower parts, except under 

 tail-coverts, rich gamboge-yellow, deepening into rich saffron (some- 

 times rufous-orange) on chest; wing about 2.00-2.15, tail 1.60-1.75. 

 JSah. Guatemala to Peru. 



C. inornata Baird. Central American Parula.^ 



Genus DENDROICA Gray. (Page 482, pi. CXVI., figs. 4, 6, 7 ; pi. CXYII., 



figs. 1, 2.) 



Species and Subspecies. 



a^. Bill very acute, the tip very aj)preciably decurved ; tongue with the terminal 

 half having the edges folded over upon the ujoper surface, the terminal por- 

 tion deeply cleft and fringed. (Subgenus Perissoglossa Baird.) 

 ¥. Inner webs of exterior tail-feathers with large white patch. Adult male: 

 Top of head blackish ; sides of head and neck, rump, and lower parts 

 gamboge-yellow, becoming much paler (sometimes white) on under tail- 

 coverts ; ear-coverts chestnut or rusty, and throat sometimes tinged 

 with same ; a black line from bill to eye, continued behind the latter ; 



1 Parula insularis Lawr,, Ann. Lye. N. Y. x, Feb. 1871, 4. Compsothlypis insularis Stejn., Auk, i. Apr. 

 1884, 170. 



' New species. Althougli Mr. Lawrence mentioned both Tres Marias and Socorro specimens in his original 

 description of Parula insularis, his description and measurements were taken from a specimen from the former 

 locality, which may, therefore, be considered the type. With the same material before me as that which Mr. 

 Lawrence examined, I am able to appreciate readily the differences of plumage which he ftoints out as dis- 

 tinguishing the birds from Socorro. In fact, I am somewhat surprised that he considered them the same 

 species. The Socorro bird is, upon the whole, more different from C. insularis than the latter is from C. nigri- 

 lora. 



^ Parula inornata Baiud, Review, i. 1S66, 171. Compsothli/pis pitiayumi inornata Stejx., Auk, i. Apr. 

 1884, 170. 



