BIRDS OF NORTH AND MIDDLE AMERICA. 125 



6. Smaller and more slender (but with relatively longer wing and tail) and bill 

 much smaller (depth at base not more thaii 10.67, usually much less). ( Car- 

 podacus mexicanus. ) 

 c. Adult male with red (or yellow) of under parts extending no farther back- 

 ward than throat or upper chest, and there abruptly defined, or else with 

 breast merely pinkish or pale red, in contrast with deep red of throat; 

 crown (between red or yellow supra-auricular stripes) grayish brown, with- 

 out any tinge of red (or yellow). 

 d. Bill smaller (male with exposed culmen averaging 10.67, depth at base 

 averaging 9.14); redi parts of adult male lighter in color (bright poppy 

 red or crimson in summer, pinkish wine purple in winter). (Southeast 

 ern portion of Mexican plateau, in States of Hidalgo, Vera Cruz, Puebla, 



and Mexico.) Carpodacus mexicanus mexicanus (p. 131) 



dd. Bill larger (male with exposed culmen averaging 11.68, depth at base 

 averaging 10.16) ; red parts of adult male darker (dark crimson in sum- 

 mer?, deep vinaceous wine purple or maroon purple in winter). 

 (Extreme southern portion of ilexican plateau, in State of Oaxaca.) 



Carpodacus mexicanus roseipectus (p. 133) 

 cc. Adult male with red of under parts extended over whole chest, sometimes 

 over breast or even over abdomen; red of forehead and superciliary region 

 rarely sharply defined, the crown usually more or less (often distinctly) 

 tinged with reddish, even the back sometimes washed with red. 

 d. Larger (adult male with wing averaging more than 76.20, tarsus averaging 

 17.78 or more). 

 e. Wing averaging 80.52 in male, 78.74 in female, tail averaging 61.21 in 

 male, 59.18 in female; adult male with red always (or nearly always) 

 extending over breast to abdomen, the pileum and back more or less 

 tinged or washed with red. (Southwestern portion of Mexican pla- 

 teau, in States of Morelos, Michoacan, Colima, Jalisco, and Guanajuato.) 



Carpodacus mexicanus rhodocolpus (p. 134) 



ce. AVing averaging not more than 78.49 in male, less than 76.20 in female, 



tail averaging not more than 59.18 in male, not more than 56.90 in 



female; adult male with red more restricted, rarely extending over 



breast to abdomen or strongly tinging pileum or back. 



/. Bill smaller (exposed culmen averaging 10.41 in male and female, 



depth at base averaging 9.65); coloration slightly paler. (Northern 



Mexico to Colorado, California, etc. ) 



Carpodacus mexicanus frontalis (p. 137) 



ff. Bill larger (exposed culmen averaging 11.18 in male, 10.92 in female; 



depth at base averaging 10.16 in male, 9.91 in female); coloration 



slightly darker. (Santa Barbara islands, California; Todos Santos 



Island, Lower California.) Carpodacus mexicanus dementis (p. 140) 



dd. Smaller (adult male with wing averaging less than 76.20, tarsus averaging 



less than 17. 78. ) (Adult males extensively red, as in C. m. rhodocolpus. ) 



e. Wing and tail shorter, bill slightly larger (wing averaging 73.91 in male, 



71.63 in female; tail 58.93 in male, 54.61 in female). (Southern Lower 



California.) Carpodacus mexicanus ruberrimus (p. 136) 



ee. Wing and tail longer, bill slightly smaller (wing averaging 75.95 in male, 

 72.90 in female; tail 60.96 in male, 57.91 in female.) (Coast district 

 of southern Sonora and southwestern Chihuahua. ) 



Carpodacus mexicanus sonoriensis (p. 135) 



66. Larger and stouter (with relatively shorter wing and tail), and bill much larger 



(depth at base not less than 11.43, usually much more). 



c. Bill smaller, distinctly compressed basally; exposed culmen averaging 12.45 



in male, 12.70 in female; depth of bill at base averaging 11.94; upper parts 



paler and grayer. (San Benito Island, Lower California.) 



Carpodacus mcgregori (p. 141) 



