10. sruKTJs. 339 



yellow, with a shade of ashy on the upper throat ; centre of breast 

 and abdomen duU white, the sides of the body dull ashy grej' ; thighs 

 and under tail-coverts dull white ; axillaries aud under wing-coverts 

 white ; quills dusky below, white along the edge of the inner web. 

 Total length 5 inches, culmeu O'o, wing 2-7, tail 2, tarsus 0'7. 



YoutKj. Greyish olive above, the head dull olive-greenish ; lores 

 and feathers round the eye white ; ear-coverts smoky brown ; throat 

 and foi'e neck pale lemon-yellow, whiter on the upper throat; 

 remainder of plumage as in the old female, excepting that the wing- 

 bars are much less distinct, and the white on the tail-feathers more 

 restricted. (J/w.s. Salv'm and Godman.) 



-Hub. Guatemala to Mexico, probably remaining in the uplands 

 all the year (>S'. 4' ^0 ; occurring also in Arizona, and probably in 

 Texas and New ilexico. 



a. Ad. sk. Popocatepetl, Mexico Sclater Collection. 



{£>e Saussure). 



b. 2 ad sk. Jalapa, Mexico (De Oca). Sclater Collection. 



c. cj ad. sk. La Parada, S. Mexico. A. Salle, Esq. [C.]. 



d. e. St. Mexico. Purchased. 



f>ff- d 2 ad. sk. Volcan de Fuego, Guate- Sclater Collection, 



mala, Xov. 20 (O.Salvin). 



10. SIURUS. ,^ 



Seimnis, Sivains. Zool. Journ. iii. p. 171 (1827) S. auricapiUus. 



Enicocichla, Gray, List Gen. B. p. 22 (1840) S. auricapiUus. 



Siurus, Sfrickl. Ann. ^- Mag. Nat. Hist. vi. p. 422 (1841) S. amlcapiUus. 

 Exochocichla, Van der Hoeven. 



Range. The whole of Xorth America, ranging in winter through 

 Central America, Guiana, Colombia, aud Ecuador, as well as through- 

 out the Antilles. 



Key to the Species. 



a. Crovra with a distinct band of ochreous buff, 



bordered on each side b}' a band of black ; 

 superciliary streak ochreous bufl"; no stripes on 

 under sm-face of body auricapiUus, p. 339. 



b. No coronal streak ; sometimes a few frontal 



feathers with light bases ; eyebrow either absent 



or, when present, white or pale rufescent ; 



brea-st streaked. 



a'. Flanks and under tail-coverts ochreous buff or 



pale fawn-colour, not j-ellow ; axillaries pale 



fulvous motacilla, p. 342. 



b'. Flanks and under tail-coverts strongly washed 



with vellow, like the whole of the mider , • ojo 



.. • • II • 1 1 1, navttis, p. 343. 



surtace; axiliai'ies dark brown < ^ .V o</> 



' I notabuis, p. 346. 



1. Sinrus auricapiUus. 



The Golden-crowned Thrash, Edwards, Gleaiiinfjs, v. p. 91, pi. 252, 

 fig. 2 (1758) ; Lath. Gen. Sijn. ii. pt. 1, p. 21 (1783) ; Penn. Arctic 

 Zool. ii. p. 339 (1785). 



Le Figuier a teste d'or de Peusilvanic, B. iss. Orn. iii. p. 504 (1760), 



z2 



