300 OBERHOLSER, Description of a New Empidonax. [ fay 
DESCRIPTION OF A NEW 4£4/P/DONAX, WITH NOTES 
ON EMPIDONAX DIFFICILIS. 
BY HARRY C. OBERHOLSER. 
THERE are in the collection of the United States Biological 
Survey five specimens of an Hmpidonax, taken by Mr. Clark P. 
Streator on the Santa Barbara Islands, California. These prove 
to be quite distinct from their nearest mainland relative £. dijicilis, 
and to constitute thus an interesting and apparently undescribed 
form, which, in view of its island habitat, may very appropriately 
be designated 
Empidonax insulicola, sp. nov. 
Cuars. sp.—Z&. diffictli similis, sed supra obscurtor et brunnescentior ; 
ee pallidior, pectore vix ochraceo-brunneo lavato. 
., 64.5-69.5 (68.2) mm.; caud., 59.5-64 (61.4) mm.; culm. exp., I1— "3 
ca “ mm.; tars., 17-18 (17.7) mm. 
Flabitat. Batre Santa Barbara, California. 
Description. — Type, male adult, No. 140078, U. S. Nat. Mus., Biological 
Survey Collection; Santa Rosa Island, California, July 3, 1892; C. P. 
Streator. Above olive brown, slightly paler and more greenish on rump, 
darker on head. Wings fuscous, the lesser coverts edged with the color 
of the back; median and greater coverts tipped with brownish white, this 
forming two conspicuous wing-bands; secondaries and tertials margined 
externally with the same color. Tail fuscous, the outer webs of the 
feathers very narrowly edged with the color of the back. Lores and 
orbital ring dull yellowish white, the former somewhat mixed with olive; 
sides of head and neck like the back, but rather lighter, and shading 
gradually into the color of under parts; chin and throat dull grayish white, 
faintly washed with yellow;. remainder of lower surface straw yellow, 
slightly paler on jugulum and crissum, inconspicuously tinged across 
breast and on sides and flanks with olive brown; bend of wing below buff ; 
axillars and inferior wing-coverts straw yellow. 
From Empidonax cinerttius, with typical specimens of which it 
has been compared, this new species differs in being darker, less 
ashy, and somewhat more olivaceous above — particularly on the 
head — and rather deeper, more continuously yellow below. From 
E. difficilis it may be readily distinguished by its darker, browner 
upper parts, especially the head, and by the usually much paler 
