21. mnoDiocTEs. 433 



Nomencl. Av. Neotr. p. 10 (1873) ; Coues, B.N.-West, p. 80 (1874); 



Baird, Brewer, ^- Ridgw. Hist. N.-Amer. B. i. p. 320, pi. 16. fig. 6 



(1874); Cozies, B. Color. Vail. p. 323 (1878); Ridgw. Bull. U.S. 



Nat. Mus. uo. 21, p. 10 (1881) ; Salv. ^■. Godm. Biol. Centr.-Amer., 



Aves, i. p. 166 (1881) : Cvue.s, Key N. Amer. B. 2nd ed. p. 314 



(1884). ' •:•-.■ 



Sylvania bonapartii, Nidt. Man. 1840,. p. 322. 

 Setophaga nigi-ocincta, Lafr. Rev. Zoo/. 1843, p. 292, 1844, p. 79. 

 Euthlypis canadensis, Cab. Mus. Hein; Th. i. p. 18 ; id. J. f. O. 



1860, p. 326. 

 Myiodioctes pardalina, Bp. Consp. i. p. 315 (1850). 

 Adult male. General colour above light slaty grey, with a faint 

 trace of olive occasionally (the remains of winter plumage) ; wing- 

 coverts like the back ; greater series, bastard-wing, primary-coverts, 

 and quills dusky, externally edged with slaty grey, a little lighter 

 on the primaries, the first of which is edged with ashy whitish ; 

 tail-feathers dusky, edged with slaty grey, the outer ones fringed 

 with whitish near the end of the outer web ; crown of head grey 

 like the back, but mottled with black centres to the feathers, the 

 black increasing towards the forehead ; a conspicuous supraloral 

 streak of yeUow from the nostrils to the corner of the eye ; eyelid 

 yellow ; lores and feathers below the eye black, descending in a 

 streak down the sides of the neck ; ear -coverts and sides of neck 

 clear slaty grey ; cheeks and under ■ surface of body bright yeUow, 

 the fore neck and chest thickl}* spotted with triangular marks of 

 black ; thighs yellow ; under tail-coverts white ; axillaries yeUow ; 

 under wing-coverts white ; ' quills dusky below, ashy white along 

 the edge of the inner web : " biU pale' brown above, flesh-coloured 

 below.;, feet and claws flesh-coloured and semitransparent ; iris deep 

 brown " (Audubon). Total length o"l inches, culmen 0'45, wing 

 2-65, tail :2-"3, tarsus 0-7. • 



Adult female. Differs from the male in the almost total absence 

 of black spots on the crown and breast ; above delicate ashy grey, 

 with a tinge of oUve ; wings and tail as in the male : on the fore- 

 head a slight indication of black centres to the feathers, otherwise 

 the head hke the back : a yeUow streak from the nostril to the 

 corner of the eye, but paler than in the male; eyelid yellowish 

 white ; lores and feathers below the eye dusky ; ear-coverts pale ashy 

 grey like the back ; cheeks and under surface of body pale yeUow ; 

 under tail-coverts white ; on the chest a slight indication of dusky 

 spots. Total length 5-2 inches, culmen 0'45, wing 2'45, tail 2-15, 

 tarsus 0'8. 



Female in ivinter plumage. Similar to the summer plumage above 

 described, but more washed with olive above, especially on the 

 head. 



Young male in ivinter plumage. Scarcely to be distinguished from 

 the adult female in winter, but has generally the spots on the chest 

 blacker and more distinct, though much smaller than in the breeding- 

 plumage of the adult male. On the head also, by lifting the 

 feathers, traces of the black centres to the coi-onal plumes can be 

 found, much more extended than in any female bird. 



VOL. X. 2 F 



