POLIOPTILA. 71 
slightest trace of the white near the bill—an occasional feather only 
being tipped with this color. 
A female referred to this species is similar in general character, 
but without the black head; the bill rather larger. The whole 
loral region to bill and the eyelids are white.' 
’ 
Smith-|Collec-| Sex When 
sonian| tor’s | and Locality. Collected Received from Collected by 
Bros) Bey Age. , 
32,556 | 248 fof Grenada, Nicar. ates Acad. Naty Sei: | "| sea ee 
30,555 oe Jd | W. coast Cent. Am. sere Capt.tJ- Mf. (DOW ie) uli vee 
30,554 Q | Realejo, C. A. July 16, 63. Os [Pn Te ereyere 
34,101 fof ug Feb. 1864. Ss | = arate 
+-Polioptila superciliaris. 
Polioptila superciliaris, LAwRENcE, Ann. N. Y. Lyc. 1861, 304, 322 
(Panama). 
First primary broad, and more than half the second, which is equal in 
length to outer secondaries. Color above light ashy (paler than in Jeuco- 
gastra) ; secondaries margined with white. The top of the head and nape 
are glossy black ; the sides, however, are white, excepting a short black line 
from the eye backwards, running into the black of the nape. In other words, 
a conspicuous white line from the bill over the eye (which is situated about 
opposite its middle) and involving the whole loral region. The tail is glossy 
black ; the outer tail feather is entirely white to the base; the next is white, 
except for the basal third; the next white for rather Jess than the terminal 
third; the fourth feather has a narrow white tip. The shafts of the white 
portions of the tail feathers are white. 
' Since the preceding article was written Mr. Salvin has kindly transmitted 
to me for examination his type specimens of P. albiloris, from Guatemala, and 
skins labelled P. buffoni, from La Union, Salvador. The former agree very 
well with the first described specimen of “ albiloris,” except that the bill is 
not so large nor so much decurved at the end, the lores are more nearly 
white—there being only a few blackish feathers in front of the eye (more 
perhaps on one side than on the other) ; the white of the tail feathers extends a 
little farther towards the base. No. 34,101, also received recently, agrees with 
the type, except in having the larger bill. I can see very little difference 
between Mr. Salvin’s specimens of “ albiloris” and of “ buffoni,” excepting in 
the color of the lores, and those described above, form two stages of inter- 
mediate gradation. I am, therefore, not disinclined to the impression that 
they all form one species. They all differ from P. buffoni, of Cayenne and 
Bogota, as first described by Dr. Sclater, in having nearly the basal third of 
the inner web of outer tail feather black, not white; the basal half of the 
inner web of the second, and the basal three-fourths of that of the third 
feather black, instead of being white, almost to the base. 
The P. nigriceps differs from all these specimens in the longer tarsi and the 
oblique markings on the tail. 
