•SVLVlCOLllJ.E — THK WAKBLERS. 241 



Yellow of luitier parts conliiicd to iuguluiu ; rest of iiiiilrr parts white ; 



the sides streaked with lilaek i/rnrirr. 



Yellow of under parts extending to erissum. Sides scarcely streaked. 



titlchtiijtl . ^ 



In the Ee\'iew (p. 209) several variations in this species are noted ; but at 

 that time there was not a sufficient number of specimens to warrant our 

 coming to a conclusion as to their value. Now, however, we have better 

 material before us, and upon the examination of about thirty sj)ecimens, in- 

 cluding two series of nearly equal numbers, — one from the Atlantic States 

 and the West Indies, the other from the Mississippi region and ^Middle 

 America, — find that there are two appreciably different races, to be distin- 

 guished from each other by points of constant difference. All birds of the 

 first series have the bill longer than any of the latter, the difference in a 

 majority of tlie specimens being very cousideraljle ; they also have the super- 

 ciliary stripe bright yeUow anteriorly, while amojig the latter there is never 

 more than a trace of yellow over the lores, and even this minimum amount 

 is discernible only in one or two individuals. The West Indian form is, of 

 course, the true dominicii, ;ind to be distinguished as var. doiiiiiiicu ; as none 

 of the synonymes of this species were founded upon the ^le.xican one, how- 

 ever, it will be necessary to propose a new name ; accordingly, the term \-ar. 

 cdhilura is selected as being most descriptive of its peculiar features. 



The following synopsis, taken from typical specimens, shows the differ- 

 ences between these two races : — 



(Xo. 3,322, ^, Liberty County, (ieorgia.) Bill (from nostril), .45; tarsus, .60 ; 

 wing-, 2.GU ; tail, 2.0(). Superciliary stripe, anterior to eye, wholly bright yellow ; 

 yellow of chin and ma.xilla; extending to the bill. Hah. In summer, Atlantic 

 States of United States, north to Washington. In winter, and possibly all 

 the year, in Cuba, Santo Domingo, and -lamaica . . . . var. dominie a. 



(No. 61,136, ^, Behze, Honduras.) Bill (from nostril), .35 ; tarsus, .60; wing, 

 2.70; tail, 2.20. SuperciUary stripe wholly white; yellow of chin and maxillae 

 bordered narrowly next the bill with white. Hub. In summer, the Mississippi 

 region of United States, north to Lake Erie; common in South Illiuoi.s. In 

 winter, and po.ssibly all the year, in Mexico, south to Guatemala, Yucatan on 

 the Atlantic, and Colima on the Pacific side ..... var. alhilora. 



H.\BITS. Tlie liistory of the Yello\\'- throated Warbler is very imperfectly 

 known. Its geographical distribution is irregular and a])parently eccentric. 

 Found occasionally, rather than frecpieutly, in the Soutlieru Atlantic and Gulf 

 States, it occurs irregularly as far north as Washington, New York City, 

 Cleveland, 0., Union County, 111., and Kansas. In the last place it is sup- 

 jiosed also occasionally to breed. West of this it has not been traced in any 

 portion of the United States. It was obtained in Taniaulipas, Mexico, by 

 Lieutenant Couch, and on the western coast Mr. Xantus found it at Colima. 

 Mr. Sclater has also proi:ured it from otlier portions of ^lexico, and M. Bou- 



^ Dendroiai iiddaidte, B.\iiii>, Krv, lisd.'i, 'IVl. Hub. I'orto Kico. 

 31 



