606 Annals of the Carnegie Museum. 



340. Dysithamnus mentalis septentrionalis Ridgway. 



Dysithamnus semicinereus Sclater, P. Z. S., 1855, 90 (Bogota, Colombia); Cat. 

 Birds Brit. Mus., XV, 1890, 221, part (Guaitil [Carmiol]). — Lawrence, 

 Ann. Lye. N. Y., IX, 1868, 107 (Tuirialba, Dota, Grecia [F. Carmiol], Guaitil 

 [J. Carmiol]). — Frantzius, Jour, fur Orn., 1869, 305 (Costa Rica). — Bou- 

 card, P. Z. S., 1878, 60 (Juan Vifias). — Zeledon, An. Mus. Nac. de C. R., 

 I, 1887, 114 (Cartago, Turrialba and Dota). — Salvin and Godman, Biol. 

 Centr.-Am., Aves, II, 1892, 206 (Costa Rican references). — Cherrie, Expl. 

 Zool. en C. R., 1890-1, 1893, 41 (near headwaters of Rio Platinar, near Buenos 

 Aires de Terraba; one specimen). 



Dysithamnus mentalis septentrionalis Ridgway, Proc. Biol. Soc. Wash., XXI, 

 1908, 193 (type from Vera Paz, Guatemala; Panama to Guatemala). 



U. S. Nat. Museum : Guayabo (Ridgway and Zeledon), Naranjo de 

 Cartago (Cooper), Buena Vista (Castro and Fernandez), La Lagu- 

 naria de Dota (Basulto). 



Bangs Collection : El General, large series ; Cariblanco de Sarapiqui 

 (Underwood). 



C. H. Lankester Collection : Cachi. 



Carnegie Museum: Juan Vifias and Las Mesas (Carriker). Three 



skins. 



This ant-thrush is found only in the higher portions of the Caribbean 

 slope, from 2,000 to 4,000 feet, and in the foothills of the south- 

 western portion of the Pacific slope. It seems to be a common bird 

 about El General de Terraba, Underwood getting a large series of speci- 

 mens at that place. It is perhaps most abundant on the Caribbean slope 

 in the region of Juan Vifias, where different collectors have taken it. 

 Cherrie records one specimen from near Buenos Aires, but I saw none 

 there. This bird is found in the heavy forest, rather low down 

 amongst the undergrowth and low trees, is sluggish in its habits and 

 quite tame. It has a weak, rather pleasing note, similiar to that of 



D. striaticeps. 



341. Dysithamnus striaticeps Lawrence. 



Dysithamnus striaticeps Lawrence, Ann. Lye. N. Y., VIII, 1865, 130 (Angostura 

 [J. Carmiol]); IX, 1868, 107 (do.). — Frantzius, Jour, fiir Orn., 1869, 305 

 (Costa Rica). — Boucard, P. Z. S., 1878, 60 (San Carlos). — Zeledon, An. 

 Mus. de C. R., I, 1887, 115 (Angostura). — Sclater, Cat. Birds Brit. Mus., 

 XV, 1890, 223 (Valsa, Costa Rica [J. Carmiol]). — Salvin and Godman, 

 Biol. Centr.-Am., Aves, II, 1892, 208 (Costa Rican references). — Under- 

 wood, Ibis, 1896, 440 (Miravalles, very rare). 



U. S. Nat. Museum: Reventazon (Carranza). 



Bangs Collection: La Vijagua (Underwood). 



