MUSCICAPA FULVIFRONS. 



109 



south of the United States boundary; (2) that E. fulvifrons 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 '. fulvifrons , should, in accordance 

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

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

 typical fulvifrons (Gir.) of " Texas " (and probably northeastern 

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

 ico, and E. fulvifrons 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 El Moro, New Mexico) which have the 

 plumage much abraded. 



a. E. fulvifrons (Giraud). 



* Type of the species. 



b. E. fulvifrons pallescens (Coues). 



* Type of Mitrephorus pallescens Coues. 

 f Ibid. 



