PASSERINA. 447 



2.55, exposed culmen .45. Hob. "Western Mexico (Manzanillo 



Bay). 



P. parellina indigotica EIDOTW. Turquoise-fronted Bunting. 1 



b 2 . Gonys more than .30 ; wing more than 2.85. 



Young male (adult male and female unknown) : Above brown (of a 

 tint intermediate between bistre and raw-umber) ; beneath similar 

 but paler; quills edged with ash-gray; length (skin) 5.50, wing 

 2.90, tail 2.50, exposed culmen .50, gonys .32, depth of bill at base 

 .42, tarsus .70. Hob. Southern Mexico (Tehuantepec). 



P. sumichrasti KIDQW. Sumichrast's Bunting. 2 



Bill smaller and less swollen, with lateral outlines nearly straight, and cutting- 

 edge of upper mandible straight, or even concave in middle portion. (Sub- 

 genus Passerina VIEILL.) 

 b l . Exposed culmen less than .45 ; depth of bill at base equal to or greater 



than length of bill from nostril. 

 c 1 . Belly blue, white, purple, or dull buffy. 



d 1 . Wing with one or two white or pale buffy bands; belly pure white. 

 Adult male: Head, neck, and upper parts turquoise-blue, the 

 back darker and duller ; middle wing-coverts broadly and 

 greater coverts narrowly tipped with white (sometimes 

 tinged with ochraceous) ; breast (sometimes sides also) 

 deep ochraceous, or tawny ; rest of lower parts white. 

 Adult female: Above grayish brown, tinged with bluish on 

 rump, the wing-coverts tipped with dull whitish or buffy; 

 anterior lower parts pale dull buffy, deeper on chest, and 

 fading into white on belly and lower tail-coverts. Young: 

 Similar to adult female, but without blue tinge on mmp. 

 Length 5.00-6.25, wing 2.70-2.95, tail 2.30-2.80. Eggs 

 .74 X -55, plain bluish white, or very pale greenish blue. 

 Hab. Western United States, east to Great Plains, south, 

 in winter, to western Mexico. 



599. P. amcena (SAY). Lazuli Bunting. 

 (P. Wing without any distinct light bands ; belly not white, or else 



breast more or less distinctly streaked with darker. 

 e l . Culmen gently curved ; cutting-edge of upper mandible 

 straight, or even faintly convex. Adult male : Head, neck, 

 and median lower parts rich ultramarine-blue, changing 

 gradually to rich cerulean-blue on rest of plumage, the 

 hidden portion of wing- and tail-feathers blackish ; lores 

 black. Adult female : Above brown, grayer on rump ; be- 

 neath pale buffy brownish, becoming nearly or quite white 

 on belly, deeper and more or less streaked with darker on 

 breast and sides. Young : Similar to adult female, but 



1 New subspecies; type No. 30142, U. S. Nat. Mus., cf ad., Manzanilla Bay, Feb. 1863; John Xantus. 

 * New species; type, No. 59683, U. S. Nat. Mus., cf juv., Tehuantepec City, Oct. 28, 1869; F. Sumichrast. 



