Carriker : List of the Birds of Costa Rica. 863 



seem as if the yellowish-green wing-coverts, mentioned by Ridgway as 

 indicating immaturity, characterize the juvenal plumage, as some indivi- 

 duals with greenish-blue coverts have soft skulls, and have evidently 

 moulted into the first winter plumage." (W. E. C. Todd.) 



The range of this handsome species covers the Caribbean foot-hills of 

 the northeastern portion of the country and the southwestern Pacific 

 region. It is probable that it will be found in the southeastern part 

 of the country also, conditions being the same there. Thus far it has 

 not been taken below 1,000 feet, and from that elevation up to 2,000. It is 

 a much rarer bird in the Terraba Valley than on the eastern slope, where 

 Carrillo seems to be the point of greatest abundance with this as well as 

 with several other species of the genus. 



689. Tangara florida (Sclater and Salvin). 



Calliste florida Sclater and Salvin, P. Z. S., 1869, 416, pi. 28 (Costa Rica; 

 coll. Salvin and Godman). — -Salvin, Ibis, 1870, 114 (Costa Rica). — Sclater, 

 Cat. Birds Brit. Mus., XI, 1886, 103, part (Costa Rica [Carmiol]). — Salvin 

 and Godman, Biol. Centr.-Am., Aves, I, 1883, 267, part, pi. 17, fig. 1 (Costa 

 Rican references). — Zeledon, An. Mus. Nac. de C. R., I, 1887, 109 (Costa 

 Rica). 



Calospiza florida florida Ridgway, Proc. Wash. Acad. Sci., Ill, 1901, 149, in 

 text. — Birds N. and Mid. Amer., II, 1902, 39 (Costa Rica: Carrillo, on Rio 

 Siicio). 



Tangara Brisson, Richmond, Proc. U. S. Nat. Mus., XXXV, 1908, 644, foot- 

 note (critical). 



U. S. Nat. Museum: Bonilla (Ridgway and Zeledon) (Basulto). 



Bangs Collection: Carrillo (Underwood). 



Carnegie Museum: Carrillo (Carriker), twenty-seven skins; Cariblanco 



de Sarapiqui and Carrillo (Underwood), three skins. 



"The changes of plumage in this species correspond closely to those in 

 T. iderocephala. Birds in juvenal dress are dull buffy-olive beneath; 

 above greenish, black-streaked, the head slightly brighter, the rump more 

 yellowish, the crown feathers black medially. The first winter plumage 

 is green beneath, as in the adult (except the abdomen medially and the 

 under tail-coverts); above with the black streaks more sharply defined, 

 but with the head still greenish, the feathers each showing a V-shaped 

 mark of black, the rump still dull yellowish-green. This plumage is re- 

 tained throughout the first breeding season, and the bright yellow occiput 

 and rump is not assumed until the first postnuptial moult. Calospiza 

 florida arccei of Ridgway, the type of which we have examined, was based 



