Descriptions of New Species of Birds. 45 



feathers of fiery crimson which terminate with violet purple ; under 

 plumage dull brownish olive ; vent light fulvous grey ; under tail-coverts 

 dull bronzy olive green, each feather margined narrowly with greyish 

 fulvous ; bill and feet black. 



Length 5^ inches ; wing 3f ; tail 2\ ; bill T 9 j . 

 Habitat. — Bolivia, La Paz. 



Remarks. — This exceeds in size any species of the same genus, 

 the wings longer and the bill stouter, the feet and claws are 

 strikingly large and strong. 



The only species it at all resembles is R. heteropogon, but 

 that has a bright green crown, and the upper plumage is of a 

 shining green and reddish bronze, whereas the one now de- 

 scribed is of a uniform olive ; the feet and bill of R. heteropogon 

 are feeble compared with those of the new species, the feet and 

 claws of which are twice the size of those in the other. 



The above described species, received at the Smithsonian 

 Institution in a collection from Bolivia, was sent to me for exa- 

 mination ; it also contained some valuable additions to their 

 museum, viz. Orcotrochilus Estellce, Ramphomicron Stanley?', 

 etc. 



In a collection from Costa Rica, also belonging to the Smith- 

 sonian Institution, I found a specimen of Panterpe insignis, 

 Cab. ; the example described by Mr. Cabanis was, I believe, 

 unique at the time it was figured by Mr. Gould in his Mono- 

 graph of the Trochilidse. The specimen agrees exactly with 

 Mr. Cabanis's description ; it is a very beautiful and well marked 

 species. In the same collection are specimens which I have 

 concluded to be females of this species, and of which I add a 

 description, as this sex has not been heretofore known. It dif- 

 fers in some of its colors and markings very decidedly from the 

 male, and but for their coming together I should have been at 

 a loss where to place them. 



