762 Annals of the Carnegie Museum. 



U. S. Nat. Museum: Volcan de Poas (Ridgway), Jimenez (Alfaro), Burgos 



de Irazu (Castro), El Roble de Irazu (Cherrie) ; Azahar, Irazu, Estrella 



and El Achiote (de Poas). 

 Bangs Collection: Irazu and "Carrillo." 

 Carnegie Museum: Volcan de Irazu, La Hondura, Ujurras de Terraba, 



Volcan de Turrialba, La Estrella de Cartago (Carriker). Eleven skins. 



This species is restricted to the higher portions of the plateau region 

 and the high mountain peaks up to timber-line, and is rarely taken below 

 5,000 feet. 



Like the following form it is found only in the heavy forest, keeping 

 on or near the ground and hiding itself with the greatest dexterity in places 

 where no apparent place of concealment exists. It is also a beautiful 

 songster, but not quite equal to its relative of the lowlands. I secured 

 a nest of this species on the Volcan de Irazu, April 17, 1902, containing two 

 badly incubated eggs. The birds make many false nests, in the same man- 

 ner as the Marsh Wren, placing them in places where they are easily seen, 

 while the real nest is tucked away in some cunningly concealed nook, almost 

 impossible to find. The nest I secured is an elbow-shaped structure about 

 eight inches in length by three and a half in diameter, with the opening 

 underneath at one end, much in the same manner as the nests of Myio- 

 zetetes and Pitangus. It is constructed entirely of black and brown root- 

 lets, with a top covering of green moss, and placed on a spray of bamboo 

 hanging over the side of a deep ravine. The eggs are pure white, un- 

 marked, and measure: 2 1.5 X 15 and 22X15 mm. Another nest was 

 taken on April 19, also containing two eggs, with incubation just begun, 

 which was built in precisely the same manner and placed in the same 

 kind of a situation. 



543. Henicorhina prostheleuca prostheleuca (Sclater). 

 Scytalopus prostheleucus Sclater, P. Z. S., 1856, 290 (Cordova, Mexico). 



Henicorhina prostheleuca Sharpe, Cat. Birds Brit. Mus., VI, 1881, 286, part 



(San Carlos, Costa Rica [Boucard]). — Cherrie, Proc. U. S. Nat. Mus., 



XIV, 1891, 519 (crit.). 

 Cyphorinus leucostictus Lawrence, Ann. Lye. N. Y., IX, 1868, 92 (Angostura 



and Turrialba [F. Carmiolj). — Frantzius, Jour, fur Oin., 1869 (Costa 



Rica). 

 Henicorhina leucosticta Boucard, P. Z. S., 1878, 51 (San Carlos and Orosi). — 



Salvin and Godman, Biol. Centr.-Am., Aves, I, 1879, 79, part (Costa Rican 



references). — Zeledon. An. Mus. Nac. de C. R., I, 1887, 105 (Jimenez and 



Angostura). 



