674 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



Mexico (Jalapa, Vera Cruz; Putla, Oaxaca; Valley of Mexico).' 



Geothlypis melanops Baied, Eeview Am. Birds, Apr., 1865, 222 (Mexico; coll. 

 IT. S. Nat. Mus.).— ScLATEE and Salvin, Proc. Zool. Soc. Lond., 1870, 551 

 (near Putla, Oaxaca).— Salvin, Ibis, 1872, 149 (monogr. ).— Salvin and God- 

 man, Biol. Centr.-Am., Aves, i, 1881, 151.— Sharpe, Cat. Birds Brit. Mus., 

 X, 1885, 355, pi. 10, fig. 2 (near City of Mexico; Jalapa, Vera Cruz). 



lOeothlypis] melanops Sclatee and Salvin, Nom. A v. Neotr., 1873, 9. 



0[eothlypis] melanops Eidgway, Man. N. Am. Birds, 1887, 524. 



IGeothlypis trichas'] y. melanops Ridgway, Am. Journ. Sci., iv, Dec, 1872,458. 



Oeolhlypis trichas var. melanops Bidgway, Am. Journ. Sci., iv, Dec, 1872, 458. 



[Oeothlypis trichasl var. melanops Kidgway, in Baird, Brewer, and Eidgway's 

 Hist. N. Am. Birds, i, 1874, 296.— Coues, Birds N. W., 1874, 74, in text. 



Oeothlypis triclias melanops Palmer (W.), Auk, xvii, July, 1900, 222. 



GEOTHLYPIS ROSTRATA Bryant. 

 BRYANT'S YELLOW-THROAT. 



Similar in coloration to G. trichas trichas, but very much larger. 



Adult niale in spring and summer. '^ — Forehead, lores, suborbital, 

 malar, and auricular regions uniform black, this 8-10 wide (measured 

 from frontal antise) on forehead, and passing narrowly along posterior 

 upper margin of eye; crown and occiput plain gray (light mouse gray 

 or olive-gray), usually decidedly paler (about gray no. 9 or no. 10) 

 next to black of forehead, the black mask margined posteriorly, from 

 above the posterior portion of the eye to the sides of the neck,' by still 

 paler gray (sometimes almost grayish white), very faintly tinged with 

 yellow, especially below; hindneck gray, like occiput, but usually 

 more tinged with olive, and gradually passing into grayish olive-green 



' Unfortunately the range of this form is very imperfectly known. The type is in 

 the well-known make of D'Oca's Jalapa skins, but is labeled simply "Mexico,"' as 

 is also the only other specimen I have seen. Of the seven skins listed in the Cata- 

 logue of Birds in the British Museum (x, 356) only two have definite localities, these 

 being Jalapaand "near City of Mexico," respectively. Aspecimen from San Diego, 

 northwestern Chihuahua (May 6, 1891, F. Robinette), in the American Museum 

 of Natural History, while intermediate is so much nearer in coloration O. t. melanops 

 than to O. t. occidentalls that I believe the breeding range of the present form is 

 toward the northern and western confines of the Mexican plateau rather than the 

 southeastern portion, specimens from Jalapa and the Valley of Mexico being perhaps 

 only winter migrants. 



The specimen from San Diego, Chihuahua, above referred to, is quite identical in 

 coloration with the type of G. melanops Baird, except that the band across the crown 

 is narrower and more tinged with yellow, its lateral arms decidedly yellow, and the 

 underlying portion of feathers of occiput and hindneck less distinctly yellow. I 

 would, however, unhesitatingly refer it to O. t. melanops but for its smaller measure- 

 ments, which are as follows: Length (skin), 117; wing, 58; tail, 56; exposed culmen, 

 11.5; tarsus, 20, middle toe, 14.5. 



' All the specimens examined were taken in February, March, May, and June. 



' This pale gray or whitish space sometimes apparently involves a small part of the 

 lipper posterior portion of the auricular region. 



