DENDROICA. 185 
Above olivaceous ashy (rump pure ash), with more distinct 
black spots. Top and sides of head clear yellow, the 
feathers of the crown tipped with black, or clouded with 
dusky plumbeous. No dark markings or stripes on side 
of head. No distinct black streaks beneath; black of 
throat restricted to front of neck . - ‘ : . occidentalis. 
Prevailing color of upper part black, with olivaceous edgings 
on the back; rump and upper tail covert pure black. 
Sides and crissum streaked with black. A simple black 
stripe through the eye; no patch beneath it . . . chrysopareia. 
Above olive-green. Upper tail coverts ashy, with central black 
streaks. Feathers of head above black, with olive-green 
edges. A broad olivaceous black stripe through eye from 
lores, involving the ears, in which is a yellowish crescentic 
patch below the eye. Black feathers of throat and chin 
edged with yellow. Jugulum and sides of breast also 
yellow. Sides streaked with black. No distinct black 
streaks on crissum . . : . . : . - townsendit. 
For the opportunity of describing D. chrysopareia I am indebted- 
to Mr. Salvin, who kindly forwarded to me his type specimen for the 
purpose. The species has not been noted except from Guatemala 
(and Mexico ?), but may not improbably be yet found in the Rocky 
Mountains of the United States.t| Mr. Salvin’s specimen (No. +33,°) 
was killed at Tactic, Vera Paz, Nov. 4, 1859. 
Dendroica towmsendii. 
Sylvia townsendii, “ Nurrauy,” Townsenp, J. A. N. Se. VII, 11, 1837, 191. 
—Aop. Orn. Biog. V,1839, pl. 393.—Sylvicola t. Bon. ; Aup. B. A. II, 
1841, pl. 92.—Dendroica t. Barry, Birds N. Am. 1858, 269.—Scu. 
P. Z. 8. 1858, 298 (Oaxaca high lands in winter) ; 1859, 374 (To- 
tontepec; winter).—SciaTer & Satvin, Ibis, 1859,11 (Guatemala). 
—Coorer & Sucktey, P. R. R. XII, 1, 1859, 179 (Cal.). 
Hab. Western province of U. S., and Mexico, into Guatemala. Migratory. 
I have never seen a specimen of this species in pure spring plu- 
mage, and I am not sure that the throat ever becomes pure black as 
in virens and its allies. Some specimens have the whole chin and 
throat yellow—the feathers of the latter very indistinctly dusky in 
the centre. 
tA specimen of this bird, or one very closely allied, is said to have been 
recently collected near San Antonio, Texas, by Dr. A. T. Heermann. 
