Mr. Ct. N. Lawrence on new American Birds. 385 



pale yellow ; inner margins of quills wliite ; under plumage 

 greyish white on the neck and breast, becoming of a very pale 

 yellow on the abdomen and under tail-coverts ; bill and tarsi 

 brownish black. 



Length 3| inches, wing 2, tail 1|, bill -j%, tarsi f . 



Hab. Ecuador. 



Allied to Serpophaga pmcilocerca, Scl. & Salv., from which 

 it differs in having the margins of the secondaries and inner 

 primaries rufous instead of yellowish olive, in the rump being 

 uniformly coloured with the back, instead of being white, and 

 in having the outer rectrices wholly white, these being oliva- 

 ceous in the allied species on the outer web. 



Orchilus atricapillus. 



Todirostrum ecaudatum, Lawr. (nee Lafr.) Ann. Lye, N. Y. 

 ix. p. 110. 



Male. The entire crown is black ; the lores are also black, 

 except a white mark extending from the bill to the eye on each 

 side, separating them from the black crown ; eyelids white ; 

 under the eye blackish ash ; the colour on the sides of the 

 head behind the eye, extending to the hind neck and on the 

 upper part of the back, is of a clear bluish-cinereous ; breast 

 also cinereous, but lighter in colour ; throat greyish white ; 

 abdomen pale yellow ; flanks and thighs blackish ash ; under 

 wing-coverts pale yellow ; back, rump, and upper tail-coverts 

 yellowish green; wings black, the primaries narrowly edged 

 with olive-green, the secondaries and wing-coverts conspicu- 

 ously margined with yellow of a greenish tinge ; tail black, 

 the feathers with margins the colour of the back ; bill black ; 

 tarsi and toes very pale flesh-colour. 



First primary shorter than the fifth, third and fourth equal 

 and longest. 



Length 2 J inches, wing lyV, tail f, bill ^^, tarsus \. 



Hab. Costa Rica, Angostura (/. Carmiol), and Volcan de 

 Irazu (/. Zeledon, under Prof. W. M. Gabb) . 



Remarks. As will be seen in my Catalogue of birds found 

 n Costa Rica {I. c.) , I referred this species to Todirostrum 

 ecaudatum. When Mr. Salvin was here last year, in going 



SER. III. VOL. v. 2 E 



