804 Annals of the Carnegie Museum. 



(Costa Rica [Van Patten], San Jose [Alfaro]). — Cherrie, Proc. U. S. Nat. 

 Mus., XIV, 1891, 527 (San Jose; crit.); Auk. IX, 1892, 22 (San Jose, resi- 

 dent). 



Geothylpis palpebralis (not of Ridgway) Lantz, Trans. Kansas Acad. Sci., 

 1896-7 (1900), 223 (San Juan Valley, Costa Rica). 



Chamcethlypis caninucha Ridgway, Birds N. and Mid. Amer., II, 1902, 689 

 (Central America, from Guatemala to Chiriqui). — Bangs, Auk, XXIV, 

 1907, 306 (Boruca, Paso Real, and Barranca de Terraba [Underwood]). 



U. S. Nat. Museum: San Jose (Cherrie). 



Bangs Collection: Tenorio, Miravalles, San Jose, San Pedro del Mojon 



(Underwood). 

 Carnegie Museum: San Jose, Miravalles, Bagaces, Boruca (Carriker). 



Nineteen skins. 



This Yellow-throat is confined to the Pacific slope of the plateau and the 

 whole of the Pacific slope proper, down to about 1,000 feet, a few straggling 

 lower in Guanacaste in the Tempisque Valley. It is found in wet pastures, 

 as well as in any kind of grassy land where there are thick clumps of bushes 

 in which it can hide. It was an abundant bird in the pastures around 

 Miravalles and in the Terraba Valley, where every little patch of savanna 

 contained one or more pairs. It is very shy and skulks close to the 

 ground and in the bushes, making it hard to shoot. 



603. Geothlypis semiflava bairdi (Nutting). 



Geothlypis bairdi Nutting, Proc. U. S. Nat. Mus., VI, 1883, 398 (Los Sabalos, 

 Nicaragua; coll. U. S. Nat. Mus.). — Cherrie, Proc. U. S. Nat. Mus., XIV, 

 1891, 527 (San Jose; critical). — Richmond, Proc. U. S. Nat. Mus., XVI, 

 1893, 485 (Rio Frio). 



Geothlypis semiflava bairdi Ridgway, Birds N. and Mid. Amer., II, 1902, 682 

 (southern Honduras and eastern Nicaragua to Costa Rica: Jimenez, Tala- 

 manca, San Jose, etc.). 



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

 Jimenez (Cherrie), Naranjo de Cartago (Juan Vifias) (Zeledon), Re- 

 ventazon (Carranza), Jimenez (Verrill). 



Bangs Collection: Carrillo and Cariblanco de Sarapiqui (Underwood). 



C. H. Lankester Collection: Guacimo. 



Carnegie Museum: Volcan de Turrialba, 2,000 feet (Carriker & Craw- 

 ford), Juan Vifias, Guapiles, Rio Sicsola, Carrillo, El Hogar (Carriker), 

 ten skins, Juan Vinas, Cariblanco de Sarapiqui, and Jimenez (Under- 

 wood), four skins. 

 This form is confined strictly to the lower slopes and lowlands of the 



