17. SPERMOPHILA. 125 



nearly obsolete white tips to the median and greater series ; bastard- 

 wing, primary-coverts, and quills black, the inner primaries and the 

 secondaries white at the base of the outer web, forming a double 

 speculum, the latter concealed by the greater wing-coverts ; upper 

 tail-coverts and tail-feathers black, the tips fringed with ashy grey ; 

 crown of head, lores, sides of face, and ear-coverts black ; lower 

 edge of eyelid, cheeks, throat, and sides of neck white ; a black 

 collar across the fore neck : remainder of under surface white, tinged 

 with yellowish buff, especially on the lower abdomen, flanks, aud 

 under tail-coverts ; under wing-coverts and axillaries whitish, mot- 

 tled with dusky bases ; quills below dusky blackish, edged with ashy, 

 and white at the base of the inner web. Total length 4 inches, 

 culmen OS5, wing 1-95, tail 1'65, tarsus 0-6. 



The male in seasonal plumage more resembles the female, being 

 generally of an ochreous-brown shade, through which the underlying 

 black plumage is perceptible. The full plumage is gained by the 

 shedding of these brown ends to the feathers. The under surface of 

 the body is rich ochreous buff and the black collar is completely 

 hidden, but can be discovered underneath the light overlying plumage. 

 The white wing-bars are very broad and distinct, as also are the 

 broad ashy-brown ends to the tail-feathers. 



Adult female. Different from the male. General colour above 

 dull ochreous brown with a slight olive tinge ; lower back, rump, 

 and upper tail-coverts clearer ochreous brown ; lesser wing-coverts 

 like the back ; median and greater coverts dusky brown, edged with 

 the same colour as the back, and tipped with yellowish white, forming 

 a double wing-bar ; bastard-wing, primary-coverts, and quills dusky 

 brown, fringed with paler brown, the innermost secondaries edged 

 with yellowish white at the ends : tail-feathers brown, margined with 

 ochreous brown ; crown of head like the back ; lores and feathers 

 round eye ochreous white ; ear-coverts and sides of neck pale 

 ochreous brown ; cheeks and under surface of body ochreous buff, 

 paler and more isabeUine on the centre of the breast and abdomen; 

 sides of body, flanks, thighs, aud under tail-coverts pale ochreous 

 buff, as well as the under wing-coverts and axillaries ; quills below 

 dusky, ashy along the inner web, and ashy white towards the base 

 of the latter. Total length 4'15 inches, culmen 0*35, wing 2*1, 

 tail 1"7, tarsus 055. 



Hub. From Texas to Mexico. 



a. 2 ad. sk. Lomita Ranch, Texas, April G. B. Sennett, Esq. 



11, 1878. [C.j. 



b. J imm. st. Mexico. Purchased. 



c. J imm. -sk. Mexico. (" Type of S. medic-ana, Sw.") 



d. e. $ $ imm. sk. Cordova. M. A. Salle [C.]. 



/. <J ad. sk. Jalapa, S. Mexico (de Oca). Salvin-Godrnan Coll. 



g,h. $ ad. etjuv. Orizaba, Mexico {Botteri). Sclater Coll 



