334 Mr. D. G. Elliot on the Trochilidje. 



A well-marked but rare species^ differing from all those 

 previously known by its non-luminous buff undcrparts. It 

 has only been proeured twice^ and is a desideratum in most 

 collections. 



I possess three specimens : 1 cJ (JVarszewie::) h'om.Bo\i\iSL ; 

 1 c? , 1 juv. d {Buckley) from Bolivia. 



Helianthea osculans. 



Helianthea osculans, Gould, P. Z. S. 1871, p. 503. 



Hab. Peru. 



It is to Mr. H. Whitely that we are indebted for the discovery 

 of this fine bird. He procured the few examples he sent to 

 England at Cachupata, in Peru, at a height of 11,000 feet. 

 It was probably migrating when he met with it, as he only 

 saw it for a short time at a certain season. It is very closely 

 allied to H. violifera, but is destitute of the white band across 

 the breast, so conspicuous in that species, the upper part of 

 the breast is a deeper green, and that hue covers a much 

 larger area. The tail also is conspicuously tipped with 

 bronzy green ; that of H. violifera shows merely an indication 

 of that colour. 



I have two specimens, \ ^ ,\ S juv. {Whitely) from Ca- 

 chupata, Peru. 



Helianthea dichroura. 



Helianthea dichroura, Taczauowski, P. Z. S. 1874, p. 138. 



This species was obtained by M. Jelski at Maraynioc, in 

 the mountains behind Lima, Peru, and thi'ce specimens sent 

 to M. Taczauowski, the Director of the Warsaw Museum of 

 Natural History, who described it in the ' Proceedings ' of the 

 Zoological Society, as given above. Its principal dificrence 

 from H. osculans is in the tail, where the bronze tips of that 

 species are extended in the present bird for one third the 

 length of the tail-feathers, forming a very conspicuous apical 

 band. Otherwise the birds are very much alike. Whether 

 this mark is sufficient to constitute a specific difierence, with 

 my present knoAvledgc of the bird (having only seen the three 

 specimens sent over) , I am vinable to determine ; but many 

 species of the Trochilidae have been established on much 



