BIRDS OF NORTH AND MIDDLE AMERICA. 95 



[PJwenicosoma] ludovicianum Giebel, Thesaurus Orn., iii, 1876, 110. 



Pyranga erythropis Vieillot, Nouv. Diet. d'Hiat. Nat., 2d ed., xxviii, 1819, 291 



(based on Wilson, Am. Orn., pi. 20, fig. 1); Enc. M6th., ii, 1823, 799. 

 Tarmgra eolumtnana Jakdine, ed. Wilson's Am. Orn., i, 1832, 317 (Columbia E. ). 

 Tanagra columbianus Brbweh, ed. Wilson's Am. Orn., 1840, 207. 



PIRANGA BIDENTATA BIDENTATA Swainson. 

 SWAINBON'S TANAGER. 



AdtiU male. — Head, neck, and under parts cadmium orange, the 

 pileum more intense (nearer orange chrome, sometimes tinged with 

 flame scarlet), the hindnecli more or less tinged or clouded with olive, 

 the color of under parts fading posteriorly to pale orange or orange- 

 bufl' on under tail-coverts; lores and orbits pale dingy yellowish; 

 auricular region much duller and lighter orange, obscured by olive or 

 dull grayish, with a dusky spot or bar across posterior margin; back 

 and scapulars light olive, more or less tinged with orange-yellowish, 

 broadly streaked with dusky; rump plain light olive; upper tail- 

 coverts orange-olive; wings dusky grayish brown with pale olive 

 edgings, the middle and greater coverts broadly tipped with white 

 (usually more or less tinged with orange, especially on middle coverts), 

 forming two distinct bands across wing; outer webs of tertials termi- 

 nating in a white spot (unless worn off); tail grayish brown with light 

 yellowish olive edgings, the inner webs of three outermost rectrices 

 tipped with white (about 1 inch in extent on outermost rectrix); under 

 wing-coverts and axillars pale buffy orange; maxilla blackish with 

 light grayish tomia; mandible dark grayish (pale bluish gray in life?); 

 legs and feet dusky horn-color (bluish gray in life?); length (skins), 

 167.6-185.4 (178.3); wing, 96-96.5 (96.3); tail, 76.2-81.8 (79.5); 

 exposed culmen, 17.3-18.3 (17.8); depth of bill at base, 9.7-10.2 (9.9); 

 tarsus, 20.3-21.6 (21.1); middle toe, 14.2-15.2 (14.7).' 



AdAdt female. — Similar to the adult male, but orange replaced by 

 yellow (lemon or gamboge on under parts, more tinged with olive on 

 pileum and hindneck), the rump, wing edgings, etc., olive-greenish; 

 length (skins), 175.3-185.4 (180.3); wing, 91.9-94 (93); tail, 77-78 

 (77.5); exposed culmen, 16-16.3; tarsus, 20.8-21.1; middle toe, 14.7- 

 15.2 (15).^ 



Southwestern Mexico, in States of Mexico (Temascaltepec), Jalisco 

 (Barranca Ibarra), Sinaloa (Plomosas), etc. 



Pyranga bidentata Swainson, Philos. Mag., newser., i, 1827, 428 (Temascaltepec, 

 Mexico).— Sclatek, Proc. Zool. Soc. Lond., 1856, 126, part (Temascaltepec): 

 Synop. Av. tanagr., 1856, 50, part; Cat. Am. Birds, 1862, 82, part (in syn 

 onymy); Cat. Birds Brit. Mus., xi, 1886, 190, part (in synonymy).— Finsch, 

 Abh. Nat. Ver. Brem., ii, 1870, 338 (Mazatlan, Sinaloa) .— SALvmandGoDMAN, 

 Biol. Centr.-Am., Aves, i, 1883, 296, part (Temascaltepec). 



[Pyranga] bidentaia Sclater and Salvin, Nom. Av. Neotr., 1873, 22, part. 



' Three specimens, * Two specimens, one of them immature. 



