758 Annals of the Carnegie Museum. 



Thryophilus pleurostictus Lawrence, Ann. Lye. N. Y., IX, 1868, 92 (Gulf of 

 Nicoya, " coll. O. Salvin "). — Frantzius, Jour, fur Orn., 1869, 291 (Costa 

 Rica). — Boucard, P. Z. S., 1878, 51 (Puntarenas). — Salvin and Godman, 

 Biol. Centr.-Am., Aves, I, 1880, 86 (Tempate and Bebedero [Arce]). — 

 Underwood, Ibis, 1896, 433 (Miravalles). 



Thryophilus pleurostictus ravus Ridgway, Proc. Biol. Soc. Wash., XVI, 1903, 

 167 (San Juan del Sur, Nicaragua; coll. U. S. Nat. Mus.); Birds N. and Mid. 

 Amer., Ill, 1904, 631 (western Nicaragua and Costa Rica: Tempate, Bebe- 

 dero, Puntarenas, Gulf of Nicoya, and Miravalles). — Bangs, Auk, XXIV, 

 !907, 305 (Barranca de Puntarenas [Underwood]). 



U. S. Nat. Museum: Santo Domingo de San Mateo (Ridgway), Bahia de 



Salinas (Alfaro). 

 Acad. Nat. Sci. Philadelphia: Bebedero and Miravalles (Underwood). 

 Bangs Collection: Bolson, Bagaces, Tenorio, Coralillo, Miravalles (Under- 

 wood). 

 C. H. Lankester Collection: Bebedero, Mojica, and Miravalles. 

 Carnegie Museum: Bebedero, Miravalles, Bagaces, Esparta (Carriker). 

 Eleven skins. 



This Thryophilus comes into Costa Rica from the Pacific lowlands of 

 Nicaragua, penetrating as far south as the Rio Grande de Tarcoles on 

 the mainland, and covers practically the whole of the peninsula of Nicoya 

 from sea-level up to 2,000 feet. It seems to prefer the more open scrubby 

 woodland to the heavy forest, although found in both. Its habits are 

 much the same as T. castaneus costaricensis, except that it is a much in- 

 ferior songster. I found it fairly abundant about Esparta, in a region 

 from which it had hardly been reported before. 



539. Thryophilus thoracicus (Salvin). 



Thryothorus thoracicus Salvin, P. Z. S., 1864, 580 (Tucurriqui, Costa Rica [Arce]; 

 coll. Salvin and Godman). 



Thryophilus thoracicus Lawrence, Ann. Lye. N. Y., IX, 1868, 93 (Santa Rosa 

 [J. Carmiol], Tucurriqui [Zeledon]). — Boucard, P. Z. S., 1878, 51 (San 

 Carlos). — Salvin and Godman, Biol. Centr.-Am., Aves, I, 1880, 86, pi. 6, 

 figs. 1, 2 (Costa Rican references). — Sharpe, Cat. Birds Brit. Mus., VI, 

 1881, 215 (Costa Rica). — Zeledon, An. Mus. Nac. de C. R., I., 1887, 105 

 (Jimenez and Pacuare). — Cherrie, Proc. U. S. Nat. Mus., XIV, 1891, 520 

 (Costa Rica; crit.). — Ridgway, Birds N. and Mid. Amer., Ill, 1904, 628 

 (eastern Nicaragua to Isthmus of Panama; — Costa Rica: Rio Frio, Tala- 

 manca, Siquirris, Pacuare, Tuis, Jimenez, Turrialba, Tucurriqui, Santa Rosa, 

 San Carlos, Val, Cervantes). 



U. S. Nat. Museum: Guayabo (Ridgway and Zeledon), Turrialba (Zele- 

 don), Reventazon (Carranza), Buena Vista (Castro and Fernandez). 



