68 REVIEW OF AMERICAN BIRDS. [PART I. 
Top of head gray; sides whitish. 
A black frontal line extending backwards over the eye. Lateral 
tail feather white, except at the base. Tail slightly 
graduated. First primary much less than half the 
second. Hab. North America . - . cerulea. 
A black crescentic line beginning at top of eye aiid peated 
the ear coverts. Lateral tail feather black for basal 
half on inner web. Tail much graduated. First pri- 
mary more than half the second. Hab. Cuba . - lembeyii. 
A black line above the eye, not reaching the bill or ear coverts. 
Lateral tail feather black on nearly the whole of inner 
web. Tail moderately graduated. First primary more 
than half the second. Hab. Arizona . 5 - plumbea. 
Polioptila melanura. 
Culicivora atricapilla, Lawrence, Ann. N. Y. Lye. V, Sept. 1851, 124 
(not of Swarnsoy). 
Culicivora mexicana, Cassin, Illust. I, 1854, 164, pl. xxvii (not of Bon.). 
Polioptila melanura, Lawrencez, Ann. N. Y. Lyc. VI, Dec. 1856, 168.— 
Barrp, Birds N. Am. 1858, 382.—Hxermany, P. R. R. R. vol. X © 
(Williamson), 1859, 39. 
Hab. San Diego to Fort Yuma and Cape St. Lucas. 
Specimens of this species from Cape St. Lucas differ from those 
of San Diego described in the P. R. R. Report (7191), in having 
the whole of the outer web of the outer tail feather white, and in a 
rather larger white tip. The colors beneath are a little less ashy, 
though not of a pure white. The ash of the back is rather lighter 
and purer. The lores are rather lighter. The Ist primary is a little 
larger and broader. 
It is possible that the restriction of the white of the outer web 
of the exterior tail feather to the outer half only is an unusual 
circumstance, as both Mr. Cassin and Mr. Lawrence, in their de- 
scriptions, speak of the entire outer web being white—the second 
feather being of the former character. Under these circumstances 
there will be little specific difference between the tails of P. melanura 
and plumbea. The female bird will then be separated by the light 
superciliary line and much shorter tarsi of P. plumbea—the latter 
measuring .63, instead of nearly .70 of an inch. 
Smith- | Collec-| Sex 
sonian| tor’s | and Locality. ih Letee Received from Collected by 
No. No. | Age. 
San Diego, Cal. dicts Lt. Williamson. Dr. Heermann. 
“ec “e oe 
7,191 g 
7,192 ad Q ane 
12,966 323 fof Cape St. Lucas. me Ji, ean Gee | te and Tecan 
16,961 | 1,346 co) Ls an 
Belen ihe) bee! Se) po ptwele9:4 
