BIEDS OF NORTH AND MIDDLE AMERICA. 897 



41.7-43.:^ (42.4); exposed culmen, 12.2-13 (12.4); tarsus, 15.2-16.5 

 (15.7); middle toe, 10.4-11.2 (10.9).' 



Adult female. — Pileum and hindneck dull or dusky greenish olive, 

 the feathers narrowly and indistinctly^ tipped or margined with 

 brighter greenish; sides of head and neck glaucous-green; back olive, 

 tinged or washed with dull greenish; scapulars, rump, and upper tail- 

 coverts glaucous-green, the last brighter, inclining to nile ])lue; wings 

 and tail olive, with indistinct paler edgings, except the middle and 

 greater wing-coverts which, respectively, are tipped and edged distinctly 

 with light olive; chin, throat, and chest light buffy grayish, changing 

 posteriorly to buflfy yellowish on abdomen and buff on anal region and 

 under tail-coverts, the thighs tinged with red; bill and feet as in adult 

 male; length (skins), 111.3-122.9 (118.4); wing, 61.7-69.1 (66); tail, 

 40.6-42.9 (41.4); exposed culmen, 11.9-13.2 (12.7); tarsus, 14.7-15.7 

 (15.5); middle toe, 10.7-11.7 (11.2).' 



Lnmature male. — Forehead, lores, postocular space, anterior part 

 of malar region, chin, and throat uniform black, as in the adult male; 

 rest of head bright cerulean or turquoise blue, becoming dusky olive 

 on occiput; otherwise like the adult female. 



Young male. — Similar to the adult female, but duller and grayer 

 above, the sides of head and neck gray instead of blue; no blue on 

 scapulars; middle and greater wing-coverts indistinctl}^ tipped with 

 pale grayish. 



Highlands of Costa Rica (Dota mountains, Tucurriqui, Turrialba, 

 Naranjo de Cartago, Pozo Azul de Pirris, Candelaria, etc.) to Colom- 

 bia (Remedios, province of Antioquia).'' 



Dacnis sp. Lawrence, Ann. Lye. N. Y., vii, 1861, 319 (Panama R. R. ). 



Dacnis venusta (not Sylvia venusia Descourtilz, 1856*) Lawrence, Ann. Lye. Nat. 

 Hist., N. Y., vii, 1862, 464 (Panama R. R.); ix, 1868, 97 (Dota Mts., Costa 

 Rica). — ScLATER, Ibis, 1863, 315, pi 7 (monogr. ); Cat. Birds Brit. Mus., xi, 

 1886, 24 (Tueurriqui, Costa Rica; Volcan de Chiriqui, Chiriqui, and Bugab^, 

 Veragua; Panama; Remedios, Colombia). — Sclater and Salvin, Proc. Zool. 

 Soc. Lond., 1864, 348 (Panama R. R.); 1879, 497 (Remedios, prov. Antio- 

 quia, Colombia). — Cassin, Proc. Ac. Nat. Sei. Phila., 1864, 269 (monogr.).^ 

 Salvadori, Atti Ac. Sci. Torino, iv, 1868, 172 (Costa Rica). — Salvin, Proc. 

 Zool. Soc. Lond., 1870, 185 (Bugaba, Veragua). — Boucard, Proc. Zool. Soc. 

 Lond., 1878, 54 (Candelaria, Costa Rica). — Salvin and Godman, Biol. Centr.- 

 Am., Aves, i, 1883, 245.— Zeledon, Anal. Mus. Nac. Costa Rica, i, 1887, 108 

 (Naranjo de Cartago; Pozo Azul de Pirris; Turrialba). — Cherrie, Proc. 

 U. S. Nat. Mus., xiv, 1891, 529 (descr. young); Expl. Zool. Costa Rica, i, 

 Aves, 1893, 17 (Boruca, s. w. Costa Rica). 



[Dacnis'] venusta Gray, Hand-list, i, 1869, 117, no. 1461. — Sclater and Salvin, 

 Nom. Av. Neotr., 1873, 160. 



^ Six specimens. 



^ Five specimens. 



^ I have not seen Colombian specimens. These should be carefully compared with 

 those from Costa Rica. 



* Sylvia venusta Descourtilz, Orn. du Bresil, 1854-56, 37, pi. 42, tig. 3; = Dacnis 

 [Ateleodacnis] analis D'Orbigny and Lafresnaye. 



