49 2 NORTH AMERICAN BIRDS. 



gray above, the lores less deeply black in male and more de- 

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

 Tres Marias Islands, western Mexico. # 



C. insularis (Late.). Tres Marias Parula. 1 

 d 2 . 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 some females) ; yellow and white of 

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

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

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

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

 Island, off coast of northwestern Mexico. 



C. graysoni Eidgw. Socorro Warbler.' 

 b 2 . Belly wholly yellow ; wing without white bands, or with mere indications 

 of them. 

 Adult (sexes apparently alike in color) : Above dark grayish 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. 

 Sab. Guatemala to Peru. 



C. inornata Eaird. Central American Parula. 3 



Genus DENDROICA Gray. (Page 482, pi. CXVL, figs. 4, 6, 7; pi. CXVIL, 



figs. 1, 2.) 



Species and Subspecies. 



a 1 . Bill very acute, the tip very appreciably decurved ; tongue with the terminal 

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

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

 b 1 . 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. Oompsothlypis insularis Stejn., Auk, i. Apr. 

 1884, 170. 



* New species. Although 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 points 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 ft nigri- 

 lora. 



3 Parula inornata Baird, Review, i. 1866, 171. Compsothlypis pitiayumi inornata Stejh., Auk, i. Apr. 

 1884, 170. 



