276 TANAGRIDZ. 
seen as yet in Costa Rica or the more southern States of Colombia. The remaining 
five species have all a more or less limited range. B. eawinua is found in Colombia 
alone, B. chloronota and B. edwardsi in Ecuador, and B. montana in Bolivia. The 
species of widest range is B. cucullata, which is found in Colombia, Ecuador, and in a 
slightly modified form in Peru. 
The genus Buthraupis is evidently allied to true Tanagra; but most of the species 
are of a more robust build, and have a stronger and stouter bill, with the usual sub- 
terminal notch very distinct; the wings are rather long, the second, third, and fourth 
quills being the longest in the wing; the tarsi are stout, but the toes rather short. 
The sexes are alike in coloration, in which dark blue and bright yellow are the chief 
colours. 
1. Buthraupis arczi. 
Buthraupis arcei, Scl. & Salv. P. Z. S. 1869, p. 439, t. 81°; Salv. P. Z. S. 1870, p. 187 - 
Supra saturate cerulea; alis caudaque nigris ceruleo extus limbatis ; subtus lete flava, capitis lateribus et gula 
tota nigris, hac viridi adumbrata; tectricibus subalaribus albis flavo tinctis; rostro et pedibus nigris. 
Long. tota 6-0, ale 3:5, caude 2:0, rostri a rictu 0°75, tarsi 0-9. (Descr. maris ex Cordillera del Chucu, 
Panama. Mus. nostr.) 
© mari omnino similis. 
Hab. Panama, Cordillera del Chucu 12, Calobre (Arcé). 
This is a well-marked species of the genus Buthraupis, of which it is the smallest 
member except B. edwardsi of Western Ecuador, to which it has no great resemblance 
in coloration. In this respect it is more like the large B. cucullata, but the head, 
instead of being black, is of the same colour as the back, and the under surface is 
deeper yellow. 
Buthraupis arcei is evidently a rare bird, having a very limited range. The only 
specimens we have seen are those obtained by our collector Arcé, who shot the types in 
the Cordillera del Chucu, and afterwards a few additional specimens in the neighbour- 
hood of Calobre. 
Of the habits of this bird we know nothing. 
TANAGRA. 
Tanagra, Linnzus, Syst. Nat. i. p. 318 (1766) ; Scl. P. Z. 8. 1856, p. 231. 
Three species only out of twelve or thirteen constituting this genus are found in 
Mexico and Central America: of these, Zanagra abbas alone is peculiar to the region. 
Of the others, 7. palmarum ranges from Costa Rica over nearly the whole of Tropical 
South America, and 7. cana, with a more extensive range within our country, passes 
southwards to Ecuador and Venezuela. The other species of the genus are wholly 
South-American, none being found in the West-Indian Islands except Trinidad and 
Tobago. 
