,3^ J Rhoads o» Vireo huttoni insularis. 2 3Q 



Vireo huttoni stephensi Brewst. 



Santa Catalina Mts., Ariz., 2 Mina Abunda, Chihuahua, i 



Iluachuca Mts., " 3 Jesus Maria, " 3^?) 



Santa Rita Mts., " 3 Bravo, " 1 



Bacadehuachu, north'n Sonora 1 Carmen, " i(>) 



Triumfo, Lower Cala. 1 Pinos Altos, " 1 



Sierra de Laguna, Lower Cala. 9 



Vireo huttoni obscurus, Anth. 

 Beaverton, Oregon, 1 Salem, Oregon, 1 



Vireo huttoni insularis subsp. nov. 

 Victoria, Vancouver Isl. 3 



Three winter specimens from Chihuahua are of questionable 

 identity. I have placed them under stephensi, but they are pos- 

 sibly stragglers, driven by stress of weather from the habitat of 

 true huttoni. The rest of the specimens are as easily separated 

 by their geographic range as by measurements and plumage, 

 stephensl showing an unusual scarcity of intermediates for a sub- 

 species, and the usual variation due to sex, age, and season beino- 

 so slight in the whole group as to make their classification a com- 

 paratively easy task. When compared with a series of true 

 huttoni from localities within a radius of a hundred miles of 

 Monterey where Cassin's type was taken, 1 Mr. Anthony's Oregon 

 birds show no characters which make them separable from 

 darker examples of that series. Mr. Anthony, after makino- 

 more extended comparisons than he was able to make previous 

 to his published description of obsctirus, had already expressed 

 to me some doubt as to its validity, and as it does not prove to be 

 intermediate between huttoni and Vancouver Island speci- 

 mens, Vireo huttoni obscurus will have to be ignored, and 

 another name given the insular form. I would propose the 

 following 1 . 



Vireo huttoni insularis, subsp. nov. Vancouver Vireo. 



Types, $ and $, Victoria, British Columbia, Feb. 12, 1891, Provincial 

 Museum collection, A. J. Maynard, collector. 



1 Proc. Acad. Nat. Sci. Phila., 1851, p. 150. 



