78 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



ff. Under wing-c'overts white, with olive, dusky, or black exterior border. 

 g. Wings and tail black. 



Piranga erythromelas, adult male in winter (p. 89) 

 gg. Wings and tail dusky grayish with olive-greenish edgings. 



Piranga erythromelas, adult female and immature male (p. 90) 

 ee. Wings with two yellow (or one yellow and one white) bands. 

 /. Back and tail black. . .Piranga Indovioiana, adult male in winter (p. 92) 

 ff. Back olive-greenish or grayish, tail grayish brown with yellowish olive- 

 green edgings Piranga ludoviciana, adult female (p. 92) 



bh. Back streaked with black. (Piranga hidentata.) 

 c. General color red or orange (darker above). 

 d. Head, neck, and under parts cadmium orange. 

 c. Smaller (wing averaging 96.3, tail 79.5; white at tip of inner web of lat- 

 eral rectrices more extended. ( Western Mexico. ) 



Piranga hidentata hidentata, adult male (p. 95) 

 ee. Larger (wing averaging 97, tail 80.7); white at tip of inner web of lat- 

 eral rectrices more restricted. (Tres Marias Islands, western Mexico.) 

 Piranga hidentata flammea, adult male (p. 96) 

 dd. Head, neck, and under parts orange-red or scarlet. (Eastern Mexico to 



Chiriqui. ) Piranga hidentata sanguinolenta, adult male (p. 96) 



ec. General color yellow, more olive-greenish on upper parts. 

 d. Paler, the back more grayish olive-green; yellow of under parts lighter. 

 e. Smaller (wing averaging 93, tail 77.5, exposed culmen 16; white tip to 

 inner webs of lateral rectrices broader. 



Piranga hidentata hidentata, adult female (p. 95) 

 ee. Larger (wing averaging 93.7, tail, 80.7, exposed culmen, 17.5; white ter- 

 minal margin to inner web of lateral rectrices narrower. 



Piranga hidentata flammea, adult female (p. 96) 

 dd. Deeper colored, the back more yellowish olive-green. 



Piranga hidentata sanguinolenta, adult female (p. 96) 

 aa. Wing less than four times as long as tarsus; outermost (ninth) primary shorter 

 than fifth. 

 b. Lores grayish^ a whitish orbital ring; sides of head, breast, sides, back, and 

 rump gray. {Piranga roseo-gularis.) 

 c. Pileum, wings, and tail brownish red; throat and under tail-coverts pinkish 

 red. (Adult males. ) 

 d. Red of pileum brighter; wing longer (averaging 79.5), tail shorter (aver- 

 ting 65.5). (Yucatan.) 



Piranga roseo-gnlaris roseo-gnlaris, adult male (p. 98) 

 dd. Bed of pileum duller; wing shorter (averaging 79.2), tail longer (aver- 

 aging 68). (Island of Cozumel.) 



Piranga roseo-gularis cozumelse, adult male (p. 99) 

 cc. Pileum, wings, and tail dull olive-greenish; throat and under tail-coverts pale 

 yellowish. (Females and immature males.) 

 d. Olive-green of pileum and yellow of throat brighter; wing averaging 78, 

 tail 62.5. 

 Piranga roseo-gularis roseo-gularis, adult female and immature male (p 98) 

 dd. Olive-green of pileum duller, yellow of throat paler; wing averaging 75, 

 tail 64. 



Piranga roseo-gularis cozumelEe, adult female and immature male (p. 99) 

 hb. Lores black or dusky; no white orbital ring; sides of head and neck red or 

 olive-green (ear-coverts sometimes grayish), breast and sides red or yellow; 

 rump red, olive-greenish, or olive-grayish, 

 c. Wing with two whits bands; edge of wing dusky. [Piranga Imcoptera.) 



