Carriker : List of the Birds of Costa Rica. 537 



256. Chalybura isaurae (Gould). 



Hypuroplila isaurce Gould, P. Z. S., 1861, 199 (Boca del Toro, Panama, fide 

 Verreaux). — Salvin, Cat. Birds Brit. Mus., XVI, 1892, 89 (Panama). — 

 Salvin and Godman, Biol. Centr.-Am., Aves, II, 1892, 275 (Talamanca, 

 C. R. [Zeledon, in U. S. Nat. Museum]). 



Chalybura isaurce Lawrence, Ann. Lye. N. Y., IX, 1868, 122 (Boca del Toro, 

 Panama). — Ridgway, Proc. U. S. Nat. Mus., Ill, 1880, 311 (Costa Rica, 

 specimen in U. S. Nat. Mus.). — Hartert, Tierr., 1900, 92 (Panama). 



Authority for placing this species on the Costa Rican lists rests en- 

 tirely upon the specimens in the U. S. National Museum, collected by 

 Zeledon in Talamanca, as recorded by Mr. Ridgway (Proc. U. S. Nat. 

 Mus., Ill, 311) and cited by Salvin and Godman (Biologia, 276). 



It is ndt at all improbable that it might be taken in the extreme 

 southeastern portion of the country, since the type came from Boca del 

 Toro, which is only about twelve miles from Costa Rican territory. 

 The bird is exceedingly rare throughout its entire range, except in 

 Chiriqui, and would be easily overlooked. 



257. Colibri delphinae (Lesson). 



Ornismya delphiyice Lesson, Rev. Zool., 1839, 44. 



Peiasophora delphincE Salvin, Ibis, 1869, 319 (Costa Rica [J. Carmiol]). — ■ 



Sclater and Salvin, P. Z. S., 1870, 837 (C. R. fj. Carmiol]). — Salvin, Cat. 



Birds Brit. Mus., XVI, 1892, 111 (C. R. [Carmiol)]. — Salvin and Godman, 



Biol. Centr.-Am., Aves, II, 1892, 282 (Guatemala to S. A.). 

 Colibri delphince Hartert, Tierr., 1900, 93 (Guatemala to S. A.). — Bangs, 



Auk, XXIV, 1907, 296 (Boruca, one $ [Underwood]). 



U. S. Nat. Museum: Bonilla (Basulto). 



Bangs Collection: San Pedro del Mojon and Escazu (Underwood). 



C. H. Lankester Collection : Cachi. 



Carnegie Museum : Escazu and Miravalles (Carriker). Three skins. 



A common bird in a few localities, probably most so in the vicinity 

 of San Pedro del Mojon, where Underwood has taken many specimens. 

 Its Costa Rican range seems to cover the greater portion of the country, 

 specimens having been collected on the Pacific coast lowlands at 

 northern and southern points, in the interior or plateau region, and 

 on the Caribbean slope down to at least 1,500 feet above sea-level. 



It frequents open woodland, isolated trees, shrubbery, etc., its habits 

 being much like those of the genera Amizilis or Floricola. 



