100 BULLETIISr 117, UNITED STATES NATIONAL MUSEUM. 



(3218) PACHYRHAMPHUS VEKSICOLOR VERSICOLOR (Hartlaub). 



Vireo versicolor Hartlatjb, Rev. Zool., 1S43, p. 289 (Colombia). 

 Pachyrhamphits versicolor Berlepsch and Stolzmann, Ornis, 1906, p. 90 (Idma). 



An adult male agrees with others from Colombia, but has the 

 underparts with fewer bars. 

 San Miguel Bridge, 1 male. 



(3270-3271) RUPICOLA PERUVIANA PERUVIANA Latham. 



Rupicola peruviana Latham, Ind. Orn., 1790, vol. 2, p. 555, based on Le Coq-de- 



roche de Perou of Buffon, vol. 4, p. 437: PI. Enl., p. 745. 

 Rupicola saturata Cabanis and Heine, Mus. Hein., 1859, vol. 2, p. 99 (Bolivia). 

 Rupicola peruviana saturata Berlepsch and Stolzmann, Ornia, 1906, p. 90 (Idma). 



A common species in the Subtropical Zone at Idma, and also 

 occurring in the Urubamba Canyon at Machu Picchu. 



Further consideration of the subject leads me to believe that the 

 view provisionally advanced in the Bulletin of the American Museum 

 of Natural History ^^ in regard to the proper application of the name 

 peruviana is the correct one, namely, that the bird figured by Bnffon 

 is the southern, not the northern form of this species in which, as his 

 plate shows, the black, subapical portion of the tertials is covered by 

 the overlapping feathers, their exposed portion being wholly gray. 

 In the northern bird the gray of the tertials is so restricted that the 

 subapical black area is visible beyond the tip of the overlying feather. 

 In body color Buffon's plate is more nearly like the northern bird, 

 but without regard to the possibility of the plate having faded in the 

 century and a quarter since it was colored, the tertial character 

 described is the more pronounced and definite of the two and ap- 

 parently compels us to apply Latham's name to the Peruvian form 

 having the exposed portion of these feathers wholly gray. 



It may be argued that specimens of the cock-of-the-rock from 

 northern rather than southern Peru would be more likely to find 

 their way into the hands of naturalists. But it must be remembered 

 that Cuzco was one of the earliest places settled by Europeans and 

 it had, therefore, long been a gateway for products of the montana 

 when Buffon's plate was made. We should, therefore, I think, 

 restrict our evidence to the actual base of Latham's name — that is, 

 Buffon's plate — and that, in my opinion, as well as that of several 

 other naturalists to whom I have shown it, depicts the bird of southern 

 Peru and eastern Bolivia. If this view be correct, saturata Cabanis 

 and Heine becomes a synonym of peruviana Latham. I have seen no 

 specimens from other parts of Peru. Those from Zamora in south- 

 eastern Ecuador are referable to the Colombia form ourea. Berlepsch 

 and Stolzmann " refer specimens from the Chanchamayo district to 

 ^'peruana," but at that time the distinctness of the south Peruvian 



» Vol. 36, 1917, p. 496. ^ Ibis, 1896, p. 369. 



