_Sylvia ruficapilla_, WILS. Am. Orn. III, 1811, 120, pl. xxvii, fig. 3.—AUD. Orn. Biog. I, 1832, 450, pl. lxxxix. _Helminthophaga ruficapilla_, BAIRD, Birds N. Am. 1858, 256; Rev. 175.—SCLATER, P. Z. S. 1859, 373 (Xalapa).—DRESSER, Ibis, 65, 477 (Texas).—COOPER, Orn. Cal. 1, 1870, 82. _Sylvia rubricapilla_, WILS. Am. Orn. VI, 1812, 15, General Index.—NUTT., BON. _Sylvicola rub._ RICH. _Vermivora rub._ BON.—REINHARDT, Vid. Med. for 1853, 1854, 82 (Greenland).—BREWER, Pr. Bost. Soc. N. H. VI, 1856, 4 (nest and eggs). _Helinaia rub._ AUD. Birds Am. II, pl. cxiii. _Helmitherus rub._ BON.—SCL. P. Z. S. 1856, 291 (Cordova); 1859, 363 (Xalapa). _Helminthophaga rub._ CAB.—SCLATER, P. Z. S. 1858, 298 (Oaxaca; Feb. and Aug.). _Mniotilta rub._ REINHARDT, Ibis, 1861, 6 (Greenland). _Sylvia leucogastra_, SHAW, Gen. Zoöl. X, II, 1817, 622. “_Sylvia nashvillei_,” VIEILLOT.—GRAY. _Sylvia mexicana_, HOLBÖLL. SP. CHAR. Head and neck above and on sides ash-gray, the crown with a patch of concealed dark brownish-orange hidden by ashy tips to the feathers. Upper parts olive-green, brightest on the rump. Under parts generally, with the edge of the wing, deep yellow; the anal region paler; the sides tinged with olive. A broad yellowish-white ring round the eye; the lores yellowish; no superciliary stripe. The inner edges of the tail-feathers margined with dull white. _Female_ similar, but duller; the under parts paler, and with more white; but little trace of the red of the crown. Length, 4.65; wing, 2.42; tail, 2.05. HAB. Eastern Province of North America; rare in the Middle Province (Fort Tejon, Cal., and East Humboldt Mountains, Nev.); Greenland (REINHARDT); Oaxaca (February and August, SCLATER); Xalapa and Cordova (SCLATER); Orizaba (winter, SUMICHRAST). Not recorded from West Indies.