7u Oberholsee, Subspecies of Piranga hepatica. [jaa. 



Batopilas, Chihuahua, and Alamos, Sonora, are slightly smaller, 

 though in color not different. Birds from the Sierra Guadalupe 

 in Coahuila are of the same size as those from Arizona, but are 

 somewhat darker, thus indicating their vergence toward Piranga 

 hepatica dextra. A single adult male from Santa Catarina, Nuevo 

 Leon, although not very far east of the Cerro de la Silla, where 

 Piranga hepatica dextra occurs, is of the same color as the Arizona 

 form, but is of rather smaller size, inclining, as would be expected, 

 toward Piranga hepatica dextra, although apparently, so far as it 

 is possible to judge from a single example, nearer Piranga hepatica 

 orcophasma. Examples from Atenguillo and San Sebastian, 

 Jalisco, together with those from Santa Teresa, Tepic, are just 

 about half way between the present race and Piranga hepatica 

 hepatica, the males being perfectly intermediate in size, though in 

 color like Arizona birds; while the female is of the size of Piranga 

 hepatica hepatica, but in color nearer the Arizona race. As a whole, 

 however, these birds are probably best referable to Piranga hepatica 

 orcophasma. 



The Hepatic Tanager was originally described 1 from a specimen 

 taken at Real del Monte, Hidalgo, Mexico; and, therefore, the 

 birds from central and southern Mexico must be regarded as 

 typical. Mr. Outram Bangs has already described ! the small, dark 

 form from eastern Mexico as Piranga hepatica dextra; but in so 

 doing, made the statement, through a misunderstanding, on the 

 ostensible authority of Mr. E. W. Nelson, that Real del Monte, 

 the type locality of Piranga hepatica hepatica, was the same as 

 Temascaltepec, likewise one of Swainson's localities. This, of 

 course, is not the case, since Real del Monte is in southern Hidalgo, 

 not far northeast of the city of Pachuca; while Temascaltepec is 

 situated at some distance southwest of the city of Mexico, and in 

 the state of Mexico. 



There are thus apparently three recognizable subspecies of 

 Piranga hepatica. The range of the new one here described has 

 been given above, but since the distribution of the others has been 

 altered by the present separation, their ranges with the necessary 

 corrections are added below. 



1 Piranga hepatica Swainson, Philos. Mag., new series, I, No. 6, June, 1827, p. 438 (Real 

 del Monte, Hidalgo, Mexico). 



» Proc. Biol. Soc. Wash., XX, March 27, 1907, p. 30. 



