582 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



DENDROICA DOMINICA ALBILORA Ridgway. 

 SYCAMORE WARBLER. 



Similar to D. d. dominica^ but with much smaller ])ill, the supercil- 

 iary stripe more rarely yellow anteriorly, and with white areas on 

 inner webs of lateral rectrices averaging decidedly larger. 



Adult male.— LQwgt\i (skins), 114.3-128.2 (116.8); wing, 63.5-69.6 

 (66.5); tail, 48.8-52.6(50.8); exposed culmen, 11.4-12.7 (11.9); tarsus, 

 16-17.2 (16.8); middle toe, 11.4-12.4 (11.9).^ 



Adult female.— Ijeugth (skins), 106.7-120.6 (115.1); wing, 63-65.5 

 (63.7); tail, 46.5-49.5 (48); exposed culmen, 10.9-12.2 (11.7); tarsus, 

 16.3-17 (16.7); middle toe, 11.7-12.2 (11. 9).*= 



Mississippi Valley; north, regularly, to eastern Kansas (Neosho 

 Falls), central Illinois, Indiana (north to Carroll Count}'), Ohio 

 (Columljus), and West Virginia (Kanawha County), irregularly to 

 southern Wisconsin, southern Michigan (Detroit), and northern Ohio 

 (CleA'eland; Rockport); lireeding southward to Louisiana and eastern 

 Texas. In winter southward through Mexico (both coasts) to Yucatan 

 (including (yozumel, Mugeres, and Holbox islands), British Honduras 

 (Belize), Honduras (Truxillo; Ruatan Island), and eastern Nicaragua 

 (Greytown). Occasional during migration in South Carolina (also in 

 Georgia and Florida?)- 



Sylvia flavicoUis (not Motacilla flavicoUis Gmelin) Swainson, Philos. Mag., n. s., i, 



1827, 434 (Vera Cruz, Mexico). 

 Sylvicola flaiicolUs Hoy, Proc. Ac. Nat. Sci. Phila., vi, 1853, 310 (Wisconsin). 

 Sylvicola pensilis (not MotaciUa pensilis Gmelin) Read, Proc. Ac. Nat. Sci. Phila., 



vi, 1853, 398 (Ohio). 

 Sylvia pensilis (not of Latham) Audubon, Orn. Biog., i, 1831, 434, part. — Hay- 



MOND, Proc. Ac. Nat. Sci. Phila., viii, 1856, 200 (Franklin Co., Indiana). 

 Rhimamj)lms pensilis (not of Gundlach) Sclater, Proc. Zool. Soc. Lond., 1856, 



291 (Mexico). 

 Sylvicola pensilis Audubon, Synopsis, 1839, 53 part; Birds Am., oct. ed., ii, 1841, 



32, part. 

 Sxjlvicola pensillis Pratten, Trans. 111. Agric. Soc, i, 1855, 601 (Illinois). 

 Dendroica pensilis SchATER, Proc. Zool. Soc. Lond., 1858, 295 (Cordova, Vera Cruz). 

 Dendroica superciliosa (not Motacilla superciliosa Boddaert) Baird, Rep. Pacific 



R. R. Snrv., ix, 1858, 289, part (Rockport, Ohio; Union Co., Illinois; 



Tamaulipas, Mexico); Rep. U. S. and Mex. Bound. Surv., ii, pt. 2, 1859, 10 



(Tamaulipas); Cat. N. Am. Birds, 1859, no. 209, part.— Sclater, Proc. Zool. 



Soc. Lond., 1859, 374 (Oaxaca, Mexico).— Raymond, Geol. Surv. Indiana, 



1869, 217 (Indiana, common). — Snow, Birds Kansas, 1873, 5 (Neosho Falls, 



s. e. Kansas, breeding). . 

 Dendrceca superciliosa Sclater, Proc. Zool. Soc. Lond., 1859, 363 (Jalapa, Vera 



Cruz); 1862, 368 (Jalapa) ; Cat. Am. Birds, 1862, 33, part (Rockport, Ohio).— 



Sclater and Salvin, Ibis, 1860, 274 (Duenas, Guatemala, Sept.). — Dresser, 



Ibis, 1865, 478 (Brownsville, Texas, Dec; San Antonio, migr.). 

 [Dendrcecal superciliosa Sclater and Salvin, Nom. Av. Neotr., 1873, 9, part 



(Mexico; Guatemala). 



^ Ten specimens. ^ Seven specimens. 



