58 



compelled to adopt for this bird the somewhat unpleasing appellation 

 gyroloides, given to it by M. de Lafresuaye iu the ' Revue Zoolo- 

 gique' for 1847, Mr. Gray's name cyanoventris, published a year in 

 advance of the former, being likewise preoccupied. 



In a group of which the species as a general rule have a limited 

 range, this Tanager is remarkable for its diffusion over a very 

 extended geographic area reaching from 10° N. Lat. to nearly 

 20° S. Lat. Beginning at the north, it was one of the two members 

 of this genus met with by Mr. Bridges m the vicinity of David, in 

 the province of Chiriqui, as recorded in the List of Mammals and 

 Birds which he collected there, given in the Proceedings of the 

 Zoological Society for 1856. It is of constant occurrence in Bogota 

 collections. Next we find it m Cisandean Ecuador, on the head- 

 waters of the Rio Napo, whence specimens have been transmitted by 

 M. Villa-viceucio : see P. Z. S. 1854, p. 1 15. Von Tschudi includes 

 it among the Callistce of the wood-region of Eastern Peru, and 

 d'Orbiguy found it in the country of the Yuracares Indians, at the 

 eastern foot of the Bolivian Andes. Here, he says, it is as common 

 as the other species of the genus which occur there {Callistce boli- 

 viana, cyanicolUs, schranki, and yeni), and has the same habits, 

 keeping in movement among the branches of the highest trees. Its 

 native name is " ChachindalaJ' 



Mr. Bridges' notes on this bird, as observed by him near David in 

 Veragua, were, that it was found on the high trees near the town, 

 and fed on the frvut of a small-fruited species of Fieus. 



The adult male of the present Calliste is readily distinguishable 

 from that of the preceding species by its blue rump. This is less 

 visible in younger birds, and in some quite immature individuals in 

 my collection even the red cap is scarcely apparent, and the whole 

 plumage is of a nearly uniform dull green. 



