710 BULLETIN 50, UNITED STATES NATIONAL MUSEFX. 



Syhania mwrocephala Ridgway, Proc. U. S. Nat. Mus., viii, Sept. 2, lo85, 354 

 (substitute for names minuia and puiniliri, preoccupied).— Ambhican Okni- 

 THOLOGisTs' Union, Check List, 1886, 357 (Hypothetical List, no. 25). 



Slylvania'] microeephala Ridgway, Man. N. Am. Birds, 1887, 527. 



WILSONIA PUSILLA PUSILLA (Wilson). 

 ■WIISON'S WARBLEK. 



Adult mafe.— Forehead, superciliary region, orbital region, and entire 

 under parts gamboge or lemon yellow, the sides and flanks slightly 

 tinged with oJive-green; crown glossy blue-black, the feathers slightly 

 elongated, distinctly outlined; rest of upper parts uniform olive-green, 

 the auricular region and sides of neck similar but rather more yellow- 

 ish; maxilla dark brown, more blackish terminally; mandible paler 

 brown, especially toward base; iris brown; legs and feet light brown- 

 ish; length (skins), 103-113 (108.1); wing, 53-57.5 (55.6); tail, 46.5- 

 50.1 (48.1); exposed culmen, 7-9 (8); tarsus, 17-19 (18.2).^ 



AAult female. — Similar to the adult male and often not distinguish- 

 able; usually, however, slightly duller in color, with black crown- 

 patch more restricted or more or less obscured by olive-green tips or 

 margins to the feathers; sometimes the black entirely absent, the 

 whole pileum, except forehead, being olive-green, the forehead and 

 superciliary region yellow; length (skins), 104-113 (107.2); wing, 52- 

 55 (53.6); tail, 46-49.5 (47.5); exposed culmen, 8-9 (8.4); tarsus, 17- 

 18.5 (17.9).' 



Eastern North America; north to Newfoundland, Labrador (Eskimo 

 River), shores of Hudson Bay, and Manitoba; west to eastern edge of 

 the Great Plains; breeding southward to Nova Scotia, New Brunswick, 

 Maine, Massachusetts?, Ontario (Ottawa), etc.; in winter south to 

 Santo Domingo and eastern Mexico in States of Tamaulipas, Nuevo 

 Leon (Monterey), Puebla (Huexotitla?; Puebla?), Vera Cruz (Jalapa?; 

 Cordova?), etc.; occasional during migration in Colorado (Fort Gar- 

 land, May), Arizona (Tucson, May; Fort Whipple, May), and other 

 parts of the Rocky Mountain district. 



Muscicapa pusnlla Wilson, Am. Orn., iii, 1811, 103, pi. 26, fig. 4.— Bonaparte, 

 Journ. Ac. Nat. Sci. Phila., iv, 1824, 179.— Wiu-iSi Ann. Rep. Smithson. 

 Inst, for 1858 (1859), 281 (Nova Scotia). 



Wilsonia pvsUla Bonapaete, Geog. and Comp. List, 1838, 23.— Allen, Proc. 

 Essex Inst., iv, 1864, 64 (Massachusetts; breeding?) .—Couiffi, Bull. Nutt 

 Orn. Club, v, 1880, 95.— Stbjneger, Auk, i, 1884, 231.— Chapman, Bull. Am. 

 Mus. N. H., X, 1898, 25 (Jalapa, Vera Cruz) .—American Ornithologists' 

 Union Committee, Auk, xvi, 1899, 123. 



Syhania pusilla Nuttall, Man. Orn. U. S. and Can., 2d ed., i, 1840,335, part.— 

 American Ornithologists' Union, Check List, 1866, no. 685, part.— (?) Fee- 

 rari-Perbz, Proc. U. S. Nat. Mus., ix, 1886, 137 (Puebla and Huexotitla, 

 Puebla, Oct., Nov.; Jalapa, Vera Cruz, Sept.).— Ridgway, Orn. Illinois, i, 1889, 

 175.— Cooke, Bird Migr. Miss. Val., 1888, 261 (Mississippi Valley localities 



'■ Nineteen specimens. '■' Ten specimens. 



