Carriker : List of the Birds of Costa Rica. 913 



751. Astragalinus columbianus (Lafresnaye). 



Chrysomilris colombianus Lafresnaye, Rev. Zool., 1843, 292 (Colombia, type 

 in coll. Boston Soc. Nat. Hist.). — Lawrence, Ann. Lye. N. Y., IX, 1868, 

 103 (San Jose [Frantzius]). — Frantzius, Jour, ftir Orn., 1869, 302. — Zeledon, 

 Cat. Aves de C. R., 1882, 9. 



Astragalinus columbianus Cabanis, Mus. Hein., I, 1851, 159; Jour, fur Orn., 

 1861, 94. 



Spinus columbianus Zeledon, An. Mus. Nac. de C. R., I, 1887, 112. 



Astragalinus psaltria columbianus Ridgway, Birds North and Mid. Am., I, 1901, 

 120 (Costa Rica). 



Carnegie Museum : Juan Vinas, March ; La Estrella de Cartago, November 



(Carriker). Four skins. 



"The Juan Vinas bird is a male apparently in the first prenuptial moult, 

 the buffy feathers of the throat being replaced by pure yellow, and the 

 olivaceous of the back by glossy black. The characteristic white of the 

 base of the primaries is obvious, but there is no trace of white on the tail. 

 The three specimens from Estrella de Cartago are females in first winter 

 plumage, with skulls still soft. They differ conspicuously from examples 

 of Astragalinus psaltria hesperophilus in the same stage of plumage, being 

 much browner above, and more buffy and yellow below. 



"Authors have differed as to the status of this form, owing to the occur- 

 rence in Costa Rica and Colombia of puzzling intermediates between it 

 and crocens, together with perfectly typical examples of both. We have 

 examined some of these specimens, in which one side of the tail is perfectly 

 plain and the other shows a conspicuous white spot. We think that these 

 facts argue strongly for the specific distinctness of the two birds, the so- 

 called intermediates being really hybrids, as suggested by Sharpe (Cat. 

 Birds Brit. Mus., XII, 1888, 208)." (W. E. C. Todd.) 



The range of this species in Costa Rica, so far as is known, is just about 

 the same as that of the following, occupying the mountains of the interior, 

 and so far as I was able to observe having the same habits. 



752. Astragalinus psaltria croceus (Jouy). 



Chrysomilris mexicana Lawrence, Ann. Lye. N. Y., IX, 1868, 103 (Barranca, 

 San Jose [J. Carmiol], San Jose [Frantzius]). — Salvin, Ibis, 1869, 314 (Costa 

 Rica; crit.). — Zeledon, Cat. Aves de C. R., 1882, 9.— Salvin and Godman, 

 Biol. Centr.-Am., I, 1886, 431 (C. R. [Frantzius, Hoffmann]). — Sharpe, Cat. 

 Birds Brit. Mus., XII, 1888, 206, part (Volcan de Cartago [Arce]). 



Astragalinus mexicanus Cabanis, Jour, ftir Orn., 1861, 7 (C. R. [Frantzius, 

 Hoffmann]). 



Spinus mexicanus Zeledon, An. Mus. Nac. de C. R., I, 1887, 112 (San Jose, 

 Cartago, and Volcan de Irazii). — -Cherrie, Auk, IX, 1892, 249 (San Jose). 



