BIRDS OF NORTH AND MIDDLE AMERICA. 573 



yellow, the chest and sides strongly biiff}^ olive, and Aving-bands more 

 bufTy; otherwise essentially as in summer plumage. 



Young. — Essentially like adults but duller olive above, with wing- 

 bands dull olive-buff, abdomen, etc., more whitish. 

 . Adult male.— Length (skins), 134-143 (13S); wing, 75-81 (77.4); 

 tail 63-69 (66.1); exposed culmen, 11-12.5 (11.9); tarsus, 16.5-17.5 

 (16.9); middle toe, 9-10 (9.3)." 



Adult female.— Length (skins), 123-135 (130); wing, 71-73.5 (72.5); 

 tail, 58-64.5 (62); exposed cUlmen, 11-11.5 (11.4); tarsus, 16.5-17.5 

 (17); middle toe, 8.5-10 (9.3). '^ 



Pine forests of northwestern Mexico, in States of Chihuahua (Pifios 

 Altos; Jesus Maria; Durasno; Sierra Madre near Guadalupe y Calvo 

 and near San Julian), Sonora (Tutuaca), Durango (El Salto; Durango 

 City; Cerro Prieto), Zacatecas (Valparaiso Mts., December), and 

 Jalisco (Bolanos, September). 



Evipidonax pulverius Brewster, Descr. Sup. New Birds from Western N. Am. 



and Mexico, Jan. 31, 1889, 86; Auk, vi, no. 2, Apr., 1889, 86 (Pinos Altos, 



Chihuahua, Mexico; coll. W. Brewster). — Nelson, Auk, xviii, 1901, 48 



(range). 

 [Evipidonax] pulverius Sharpe, Hand-list, iii, 1901, 139. 

 Empidonax affinis (not Tyrannula affinis Swainson?) Salvin and Godman, Biol. 



Centr.-Am., Aves ii, 1889, 78, part (Tutuaca, Sonora; Durango City, 



Durango; Sierra de Valparaiso, Zacatecas). 

 Empidonax obscurus (not of Baird; not Tyrannula obscura Swainson?) Sclater, 



Cat. Birds Brit. Mus., xiv, 1888, 232, part (Durango City, Durango). 



EMPIDONAX FULVIPECTUS Lawrence.c 

 FULVOUS-BREASTED FLYCATCHER. 



Similar to E. pulverius but wing and tail decidedly shorter, upper 

 parts more brownish olive, and nnder parts more deeply yellowish; 

 young with wing-bands and edges of secondaries cinnamon-buff 

 instead of pale grayisli buff. 



Adults in breeding plumage {sexes alike). — Above plain olive, 

 slightly tinged with yellowish olive-green on rump and upper tail- 



ci Ten specimens. 



b Four specimens. 



c Although Mr. Salvin has stated (Cat. Birds Strickland Coll., 1882, 314) that his 

 examination of the type of Tyrannula ajfinis Swainson showed it to be the same as the 

 species later described as Empidonax fulvipectus by Mr. Lawrence, I can not, under 

 the circumstances, accept this determination until reexamination of the former and 

 comparison with examples of the present species, E. pulverius, and E. trepidus (which 

 are all closely related) establishes its correctness. It should be taken into consider- 

 ation that, as one of the authors of the Biologia Centrali- Americana, Mr. Salvin not 

 only confounds the present species with E. puhenus but, what is still more to the 

 point , fails tt) recognizee the difference between such very distinct forms as E. dijlicilis 

 and E. bairdi, it is (nit irely possible he erred in the identification of Tyrannula ajinis 

 with E. fulvipectus. At any rate, it seems to me best to retain the latter name until it 

 is satisfactorily shown that E. aj/inis should rej^lace it. 



