96 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



P^yranga-] Udentaia Bonaparte, Oonsp. Av., i, 1850, 241.— Baird, Brewer, and 



' Ridgway, Hist. N. Am. Birds, i, 1874, 433, part. 

 I'lrani/a hidentata JouY, Proc. U. S. Nat. Mus., xvi, 1894, 779 (Barranca Ibarra, 

 Jalisco).— Nelson, Auk, xv, 1898, 157, 158 (crit.; description and synonymy) . 

 P[_lranga] bideniata Ridgway, Man. N. Am. Birds, 1887, 456, part. > 



[Phoenicosoma'] bidentatum Giebel, Thesaurus Orn., iii, 1876, 110, part. 



PIRANGA BIDENTATA FLAM-MEA Ridgway. 

 TRES MARIAS TANAGER. 



Similar in coloration to J\ h. hidentata, but with white spaces at tips 

 of inner webs of lateral rectrices much more restricted (not exceeding 

 0.80 in length on outermost recti-ix and usuallj^ much less), and size 

 decidedly greater. 



Adult male.—h&ngi\i (skins), 182.9-193 (190); wing, 95.8-98 (97); 

 tail, 78-83.3 (80.8); exposed culmen, 17-18 (17.5); depth of bill at 

 base, 10.2-10.7 (10.4); tarsus, 21.6-23.4 (22.9); middle toe, 15.2-16.3 

 (15.5).^ 



Adult female.— Length (skins), 188-193 (190.2); wing, 91.7-94.7 

 (93.'7); tail, 78.2-80.3 (79.2); exposed culmen, 17.3-18.3 (17.8); depth 

 of bill at base, 10.2-10.4 (10.4); tarsus, 22.6-23.9 (23.1); middle toe, 

 15-15.5 (15.2).^ 



Tres Marias Islands, western Mexico. 



Pyranga hidentata (not of Swainson) Grayson, Proc. Bost. Soc. N. H., xiv, 1872, 

 281 (Tres Marias).— Lawrence, Mem. Bost. Soc. N. H., ii, 1874, 274 (Tres 

 Marias). — Salvin and Godman, Biol. Centr.-Am., Aves, i, 1883, 296, part 

 (Tres Marias).— ScLATER, Oat. Birds Brit. Mus., xi, 1886, 190, part (Tres 

 Marias) . 



P[iranga'] flamtnea Ridgway, Man. N. Am. Birds, 1887, 457 (Tres Marias Islands, 

 n. w. Mexico; coll. U. S. Nat. Mus.). 



Piranga flammea Ridgway, Man. N. Am. Birds, 1887, 592; 2d ed.,1896, 614. 



PIRANGA BIDENTATA SANGUINOLENTA (Lafresnaye). 

 LAFRESHATD'S TANAGER. 



Similar to P. h. hidentata, but much darker and richer in color; 

 adult male with head, neck, and under parts orange-red or scarlet' 

 (deeper on pileum and hindneck), the ground-color of back and scap- 

 ulars, in full plumage, also the rump and upper tail-coverts, brownish 

 red (orange-rufous to dragon's blood red); wing-bands more or less 

 tinged with pinkish, sometimes decidedly pink, especially the one on 

 middle coverts; adult female with ground-color of back, scapulars, 

 and rump olive-green, the last also streaked with dusky. 



A&alt male— h&ngth (skins), 162.6-190.6 (179.6); wing, 94-102.9 



' Six specimens. 



'' Four specimens. 



' Younger individuals of this form are often hardly distinguishable in color from 

 true P. hidentata, being of a similar orange hue; but adult males in full plumage are 

 always easily distinguished by their much more intense or redder coloration. 



