1889. | BRewsTeER, Descriptions of New Birds. 87 
vertus and difficelés taken in late June at Pinos Altos where both 
unquestionably breed in close proximity, if not in the same thick- 
ets. The specific distinctness of Azlvertus from cineritius is 
less certain but probably not open to much doubt. My series of 
pulvertus includes seven adults — five males and two females — 
all collected at Pinos Altos in June. Of these, the male above 
described represents the dark* or gray extreme, the female the 
opposite light or yellowish extreme. The variations in size are 
trifling. The wings of the other five birds measure respectively 
(g) 2-98; (3) 2-943 (fh) 3:04; (o>) 2-953 (9 ),-2:75 inches. 
Empidonax griseus, new species.—GRAY FLYCATCHER. 
Sussp. CHAR.—Nearest &. obscurus, but larger and much grayer, the 
bill longer, the basal half of the lower mandible flesh colored in strong 
contrast to the blackish terminal half. 
& ad. (No. 16,889, collection of W. Brewster, La Paz, Lower California, 
Feb. 5. 1887; M. Abbott Frazar). Above, with sides of head, neck, jugu- 
Jum, breast, and body, smoke-gray, darkest and somewhat brownish on the 
crown, palest and decidedly ashy on neck, sides of jugulum, and breast; 
lores and forehead mixed with whitish; a narrow, nearly pure white ring 
encircling the eye; wings and tail hair-brown, the upper wing-coverts 
and all the quills, except the seven outer primaries, broadly tipped and 
edged with ashy white, which also forms a conspicuous border onthe outer 
webs of the outer pair of tail feathers, not extending quite in to their shafts, 
however; under wing and tail coverts, crissum, and middle of abdomen, 
breast, and throat clear, but slightly ashy, white interrupted over a 
narrow space on the upper part of the breast by a band of smoke-gray, 
rather lighter than that of the sides of the breast which it connects, 
Wing, 2.77; tail,2.45; tarsus, .72; length of culmen: from base, .62; 
from feathers, .45; from nostril. .40; breadth of bill at nostril, .21; 
breadth midway between nostril and tip, .12 inch. 
© ad. (No. 16,900, collection of W. Brewster, La Paz, Lower Califor- 
nia, Feb. 11, 1887; M. Abbott Frazar). Colored like the male, but 
smaller. Wing, 2.60; tail, 2.19; tarsus,.70; length of culmen: from base, 
-60; from feathers, .44; from nostril, .36; breadth of bill at nostril, 
-18; breadth midway between nostril and tip, .13 inch. 
flabitat. Lower California (La Paz, Triunfo, San José del 
Cabo), Arizona (?), and southern Sonora, Mexico (Alamos). 
* This specimen is in rather worn breeding plumage, whereas the female, although 
_a breeding bird, is in nearly perfect plumage, a fact which doubtless has much to do 
with ‘the difference between them, 
