1 BULLETIN: MUSEUM OF COMPARATIVE ZOOLOGY. 
yellow on the throat and abdomen. The bill of cineritius is almost. invariably 
much narrower than that of dzficilis. 
The St. Lucas Flycatcher is resident in the Cape Region, where it is not 
uncommon, Mr. Frazar found it in the greatest numbers on the Sierra de 
la Laguna in May and early June. He also obtained specimens at San José 
del Rancho in July and at La Paz in February and March. Mr. Bryant has 
taken it at Comondu, and San Benito and Santa Margarita Islands, while on 
San Pedro Martir Mr. Anthony found it “ very common all over the mountain, 
especially along the streams and in the willows. It was evidently nesting” at 
the time of his “visit in May, but no eggs were taken.” He also states that it 
oceurs sparingly near the mine and about the mission at San Fernando, where he 
thinks it nests “in the thick mesquite growth.” It probably replaces EL. difficilis 
in the breeding season throughout the greater part of Lower California. 
Its summer range extends northward into southern California, where ‘in 
the pine growth on Cuymaca Peak,” in San Diego County, ‘‘ between the alti- 
tudes of 4,000 feet and 6,000 feet,” Mr. Anthony took several specimens, which, 
without doubt, were breeding, during the latter part of June, 1895. 
Empidonax griseus Brewsrt.! 
GRAY FLYCATCHER. 
Empidonaz obscurus (not Tyrannula obscura Swainson) Barrp, Proc. Acad. Nat. Sci. 
Phila., 1859, 301, 808 (Cape St. Lucas). Brxtpine, Proc. U.S. Nat. Mus., 
V. 1883, 542 (Cape Region). Bryant, Proc. Calif. Acad. Sci., 2d ser., II. 
1889, 292 (Cape Region). 
Empidonax griseus Brewster, Auk, VI. 1889, 87-89 (orig. deser.; types from La 
Paz; crit.; Triunfo; San José del Cabo). Bryant, Loc. cit. (La Paz; 
Triunfo; San José del Cabo). Benprre, Life Hist. N. Amer. Birds, pt. 
II. 1895, 820, 321 (near La Paz; Triunfo; San José del Cabo). 
Mr. Frazar found the Gray Flycatcher at La Paz in February and March ; 
at Triunfo in April and December; at San José del Rancho in December; and 
at San José del Cabo in October and November. His latest spring specimen is 
1 Tn retaining this name I have acted in opposition to the advice of my friend, 
Mr. Nelson, who considers it a synonym of £. canescens Satvin and GopMaNn. The 
plate and description of the latter in the Biologia Centrali-Americana certainly 
seem to fit my bird closely. When I visited England in 1891, however, I took with 
me either the types or typical specimens of most of the Mexican birds which I had 
up to that time described, and showed them to Mr. Salvin. My impression is that 
E. griseus was among the number, and that Mr. Salvin passed it as distinct from 
canescens. It is not improbable that I am mistaken in so thinking, but until the 
matter can be definitely settled by actual comparison of specimens, it seems to me 
wiser to retain the name griseus (published two months later than canescens) rather 
than to adopt the name canescens at the risk, however slight, of having to change 
back again later. 
