MUSCICAPA FULVIFE.ONS. 



109 



south of the United States boundary ; (2) that E. fidvifrons proper 

 belongs to the country on the eastern side of the Rocky Mountains, 

 the National Museum possessing the original type specimen, stated 

 by Giraud to have come from Texas ; (3) that in southern Mexico a 

 third race exists, which agrees with pallescens in smaller size, but 

 differs in decidedly deeper, richer coloration. The latter is the 

 Empidonax rubicundus Cab. (Mus. Hein., ii, p. 70), but, being 

 unquestionably conspecific with E . fidvifrons , should, in accordance 

 with more modern usage, be called E. fidvifrons rubicundus (Cab.). 

 We have, therefore, three geographical races of this species : the 

 \.y\f\izdX fidvifrons (Gir.) of " Texas " (and probably northeastern 

 Mexico also), the E. fidvifrons rubicundus (Cab.) of southern Mex- 

 ico, and E. fidvifrons pallescens (Coues) of southern Arizona and 

 western New Mexico, and, probably, western Mexico. 



I subjoin measurements of the adult specimens now before me, 

 including two (from EI Moro, New Mexico) which have the 

 plumage much abraded. 



a. E. fidvifrons (Giraud). 



47691 



-ad. 



" Texas ' 



o 



.60^ 



* Type of the species. 



b. E. fidvifrons pallescens (Coues). 



40601 

 40602 



68603 

 68604 



9" 



Ft. Whipple, Ariz 



Apache, Ariz 



El Moro, New Mex. 



52- 



5it 



55 



60 



55 



12 



*Type of Mitrepkorus pallescens Coues. 

 t Ibid. 



