130 Descriptions of New Species of Birds. 



not much like those of squamigera, being not so clearly defined 

 and with the throat are of a pale rufous color, whereas in 

 squamigera the throat and spots are of a clear pale yellow, the 

 latter surrounded with deep black. The Costa Rica specimen 

 has the back brown tinged with rufous, and the tail of a deep 

 rich brown nearly black. I found a specimen of the same spe- 

 cies (not labelled) in the Museum of the Philadelphia Academy, 

 which came from Ecuador. This has the back of a much 

 brighter rufous, as also the throat and spots below. I think 

 there is a possibility of its being different from brunnescens, 

 and should it so prove, propose to distinguish it by the name 

 of brunneicauda. 



Fam. FORMICARID^E. 



6. Dysithamnus striaticeps, nov. sp. 



Male. Entire crown, occiput, and sides of the head clear greyish 

 cinereous, each feather with a broad stripe of black down its centre ; 

 back and upper tail coverts of a dark uniform olive green ; tail brownish 

 olive ; bend of shoulder white, wing coverts black, each feather marked 

 at the end with a roundish white spot; quills blackish brown, edged 

 with olive green which has a fulvous tinge, the secondaries slightly 

 tipped with fulvous ; under wing coverts and inner edges of quills 

 creamy white ; throat and breast dark slaty cinereous, some of the fea- 

 thers with their outer margins broadly white, most so on the breast ; 

 middie of abdomen white, on the lower part pale yellow ; sides dull 

 greenish olive ; under tail coverts pale fulvous ; upper mandible black, 

 the under whitish horn color ; tarsi and toes dark plumbeous. 



Length 5 inches ; wing 2f ; tail \\ ; bill T ^ ; tarsi f . 



Female. Head above of a rather bright rufous, with the feathers 

 striped down their centres with black, but narrowly and not in so 

 marked a manner as in the male ; the upper plumage olive green, with 

 a rufescent tinge ; tail olive brown ; wing coverts dark olive, spotted as 

 in the male, but of a pale rufous color ; quills blackish brown, the mar- 

 gins olive green tinged with rufous ; throat dull grey, with the shafts of 

 the feathers blackish ; breast and sides tawny olive, some of the feathers 



