78 BULLETIN 50, UNITKI) STATES NATIONAL MUSEUM. 



Jl'. Under \ving-covert.s wliite, with <^live, dusky, or blat-k I'xterior l)()rder. 

 [/. Winjis and tail black. 



Piranga erythromelas, adult male in winter (p. S9) 

 </</. W'm^v and tail dusky grayish with olive-jireenish edsi;in^',s. 



Piranga erythromelas, adult female and innnature male (p. 00) 

 ce. AVings with two yellow (or one yellow and one white) bands. 

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

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

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



bb. Back streaked with black. { Piranga Jndentata.) 

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

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



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

 eral rectrices more extended. ( Western IMexico. ) 



Piranga bidentata bidentata, adult male (p. 95) 

 ef. Larger (wing averaging 97, tail !^0.7); white at tip of inner web of lat- 

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

 Piranga bidentata flammea, adult male (p. 96) 

 (Id. Ileail, neck, and under parts orange red or scarlet. (Eastern Mexico to 



Chiri(|ui. ) Piranga bidentata sanguinolenta, adult male (p. 96) 



cc. '^Teneral color yellow, more olive-greenisli on upper j)arts. 



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

 c. Smaller (wing averaging 9o, tail 77.5, exposed culmen 16; white tip to 

 inner webs of lateral rectrices Ijroader. 



Piranga bidentata bidentata, 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 bidentata flammea, adult female ( p. 96) 

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



Piranga bidentata sanguinolenta, adult female (p. 96) 

 <ui. Wingless than four times as long as tarsus; outermost (ninth) jn'imary shorter 

 than fifth. 

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

 rump gray. {J'iram/a rusco-(/tdaris.) 

 r. Pileum, wdngs, and tail brownish red; throat and under tail-coverts pinkish 

 red. (Adult males. ) 

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

 aging 65.5) . (Yucatan. ) 



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

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

 aging 68). (Island of Cozumel. ) 



Piranga roseo-gularis cozuraelse, ailult male (p. 99) 

 cf. Pileum, wings, and tail dull olive-greenish; throat and under tail-coverts ]ia]e 

 yellowish. (Females and immature males. ) 

 (/. Olive-green of pilemn and yellow of throat brighter; wing averaging 78, 

 tail 62.5. 

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

 */(/. Olive-green of ])ileum duller, yellow of throat jmler; wing averaging 75, 

 tail 64. 



Piranga roseo-gularis cozumelae, adidt female and immature male (p. 99) 

 hl>. 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, 

 r. Wing with two whitt* bands; edge of wing dusky. (I'irani/a leiwoptera.) 



