96 bulletin: museum of comparative zoology. 



TYRANNIDAE. 



10. Tyrannus melancholicus satrapa (Licht.). 



One adult. ^, Juh" 1. Another, a nestling, was shot, but was so mangled 

 that it could not be saved. The adult agrees in all respects with continen- 

 tal skins, except that the under tail coverts are much more clouded with 

 dusky than usual. In an enormous series of this form from Central and 

 northern South America, not one has the imder tail coverts marked with 

 dusky to such an extent, though many show traces of such markings. 



COEREBIDAE. 

 11. Cyanerpes gigas, sp- nov. 



Type. — Coll. E. A. & 0, Bangs, No. 14,007 juv. $, Gorgona Island, June 26, 

 1904. 



Three specimens, 2 juv. $, 1 adult 9, June 26-28, 1904. 



Characters. — A very distinct species, though nearly related to C. cyaneus 

 (Linne). Size very large ; tail very long; bill short and stout; the purplish 

 color of rump and outer scapulars in the ^ very much darker — more purple, 

 less blue — than in C. cyaneus. Female much chirker and duller green. 



Color. — Male, type (not quite fully adult, the breast and sides still retaining 

 some of the green feathers of the immature plumage, and the crown mainly 

 green, the turquoise-colored feathers of the adult plumage appearing irregularly 

 through it), similar in distribution of colors to the male of G. cyaneus/ the 

 under parts slightly darker — cyanine blue; rump, upper tail coverts, and 

 outer scapulars much darker than in C cyaneus and of a different shade, being 

 about the same shade as under parts, — cyanine blue.^ Adult female, upper 

 parts dark, dull green (nearer to parrot green of Ridgway than any of his 

 colors, but duller and more dusky) ; under parts decidedly darker and duller 

 than in C. cyaneus and less tinged with yellowish on throat and middle of 

 bellv. 



Remarks. — This species is much more distinct from C. cyaneus than the 

 above description and measurements seem to imply. In general bulk it is a 



1 In Birds of North and Middle America, Part II. p. ",86, Ridgway describes the 

 (^ of Cjianerpes cyaneus as though the rump and the under parts were the same 

 color, — smalt blue. In a very large series examined by us, tlie rump is invari- 

 ably paler and brigliter blue than the under parts, about French blue. 



2 In these two skins the wing measurement is much too short, as the longer 

 primaries having recently moulted are not full grown. 



