Four JVew Species of Birds from Costa Rica. 89 



black in the new species is more prevalent and the blue 

 darker and brighter. C. nana and C. pumilo each have a 

 narrow whitish band on the forepart of the crown, and ex- 

 tending over the eyes, but uniformly narrow; the former is 

 described as having the throat bluish-white ; but in these 

 species the black is confined to the front, sides of the head 

 and throat, the blue color is much lighter and they are rather 

 smaller. 



The new species is very handsome,. and the peculiar mark- 

 ings on the head and throat will at once distinguish it from 

 all others. 



2. Stenopsis albicaucla. 



Male. Crown and sides of the head blackish-brown finely freckled 

 with bright rufous and gray, a grayish-white line extends from the bill 

 over the eye ; throat and sides of the neck white, tinged with pale rufous ; 

 there is a narrow band of pale rufous on the hind neck; upper plumage 

 dark brown, the feathers crossed with narrow markings of light rufous ; 

 two central tail feathers grayish-ash, marked with narrow waving lines of 

 brown, and crossed with eight irregular blackish-brown bars ; the outer 

 lateral feather is white, its outer web tinged with dull rufous almost to 

 the end of the feather, and about midway of the web is a narrow brown 

 stripe along the shaft half an inch in extent, the remaining feathers are 

 white on their inner webs, except at their ends, where with their outer 

 webs they are blackish-brown; the smaller wing coverts, secondaries and 

 tertiaries are handsomely freckled with gray and rufous, and blotched 

 with black and lighter rufous, the larger wing coverts are blackish- brown 

 ending with pale rufous ; the feathers of the breast are fuliginous at base, 

 and crossed on the exposed portions with narrow bars of black and light 

 rufous, the ends of the feathers whitish ; the abdomen is very pale rufous, 

 sparingly barred on the sides with blackish, the marks on the middle of 

 the abdomen are nearly obsolete ; the under tail coverts are clear light 

 rufous and immaculate; the quills are dark brown, the outer four prima- 

 ries have a conspicuous white bar at about one-third their length from the 

 end, on the first primary is a white spot on the inner web towards the 

 base, the other quill feathers have their inner webs more or less marked 

 with pale rufous spots ; under wing coverts dark brown mottled with ru- 

 fous ; bill black ; tarsi and toes pale brownish-yellow. 



Length 9 in. ; wing 5£ ; tail 4£ ; tarsus &. 



Habitat. Costa Kica, Talamanca. Type in National 

 Museum. 

 February, 1875. 7' AttN. Ltc. Nat. Hist., Vol. xi. 



