1106 MR. C. E. HELLMAYR ON THE 



One adult male from Costa Rica (Naranjo) : Wing 81 ; tail 56 ; 

 bill 13^ mm. 



Eight adult males from "Westei-n Ecuador (Intag, S. Nicolas, 

 Gualea): Wing 78-80; tail 52-58; bill 12-12i mm. 



Five adult males from Paramba, N.W. Ecuador : Wing 75-79 ; 

 tail 52-55; bill 12 mm. 



Remarks. It is a curious fact that the birds from Western 

 Ecuador should belong to the Central American race, and not to 

 C g. gyroloides which is found in the neighbouring republic of 

 Colombia. However, all of the many specimens — nearly thirty 

 from Paramba, and eleven from other localities in Western 

 Ecuador — which I have been able to examine showed the pale 

 golden yellow shoulder-spot well-developed, thereby difiering very 

 markedly from the Colombian form with its vmiform green wings. 

 Although the majority of the Ecuadorian skins have the blue of 

 the rump rather lighter, and the top and sides of the head 

 somewhat clearer rufous, yet many specimens are quite indis- 

 tinguishable from the Chiriqui ones. I do not, of course, believe 

 in a discontinuous distribution, and fully expect that G. g. bangsi 

 will be found to exist in the Colombian coast district, having 

 thus an vininterrupted range from Western Ecuador to Chiriqui, 

 while C. g. gyroloides is most probably confined to the high, open 

 country of the interior. This view is also shared by Mr. W. F. H. 

 Rosenberg, who has a considerable knowledge of the local distri- 

 bution of birds in those western districts. 



The single Costa Rica male has a decidedly longer bill than any 

 other example examined by me. 



I have named the new for^^U^r Mr. Outram Bangs, of Boston, 

 in i-ecognition of his numerWs important contributions to the 

 ornithology of tropical America. 



(c) C. GYROLOIDES CATHARINE, Subsp. n. 



Hab. Upper Amazonia : from the eastern slopes of the Andes 

 in Colombia (Rio Meta*) and the banks of the Rio Negro 

 (Marabitanas, Rio Xie) through Eastern Ecuador and Peru to 

 Northern Bolivia (Yuracar^s). 



Type in the Zoological Museum of Munich, No. 11,399 c? ad. 

 Chaquimayo Carabava, S.E. Peru, 3000 feet, 29.viii.1910. H. & 

 C. Watkins coll. no."'327. 



Adult. Smaller, with a much weaker, slenderer bill ; rufous cap 

 bordered behind by a very distinct, golden yelloio hand, from 2 

 to 3 mm. wide ; upper throat dark green, separating the rufous 

 chin-spot from the blue f oreneck ; the whole of the lesser and the 

 adjoining median iipper wing-coverts deep orange golden, forming 

 a very large, bright shoulder-patch. This patch is about twice as 

 large as in C. g. bangsi, and of a much deeper, more orange golden 

 tinge. 



* According to Mr. Rosenbero:, the British Museum has four adult birds of this 

 form from the Rio Meta (800-1500 ft. ; Wheeler coll.) and several others obtained 

 by Buckley in Eastern I]cuador. 



