60 MR. A. BOUCARD ON BIRDS FROM COSTA RICA. [Jan. 15, 



Subfamily Dendrocolaptin^e. 



169. Margarornis rubiginosa, Lawr. 

 Two specimens, from Navarro, May. 



170. Glyphorhynchus cuneatus, Licht. 



One specimen, from Naranjo, April. Killed in the forest on the 

 trunk of a tree. This bird is constantly flying from one tree to 

 another. It is one of those which travel in company with many 

 other species. 



171. Dendrocolaptes sancti-thom.e, Lafr. 

 One specimen, from Navarro, April. 



172. Dendrocolaptes puncticollis, Sclat. and Salv. 



Two specimens, d and $ , from Naranjo, April. I killed the two 

 on the same tree. They were busily engaged in building their nest 

 in a hole of the trunk. 



173. Dendrornis susurrans, Jard. 

 One specimen, from San Carlos, February. 



174. Picolaptes compressus, Cab. 

 Two specimens, from Navarro, May. 



175. XlPHORHYNCHUS PUSILLUS, Sclat. 



One specimen, from Naranjo, April. This species seems to be rare. 

 My specimen was killed on the trunk of a tree when going up and 

 down on the same. 



Family Formicariid^e. 

 Subfamily Thamnophilin^e. 



176. Thamnophilus nigricristatus, Lawr. 

 Thamnophilus punctatus, Cab. 



One specimen, from San Carlos, February. Rare. All the species 

 of this genus go about in the forest in company with many other 

 birds. 



177. Thamnophilus n^evius, Gm. 



Two specimens, from San Carlos, February. 



178. Thamnophilus doliatus, L. 

 One specimen, from San Mateo, May. 



179. Dysithamnus striaticeps, Lawr. 



One specimen, from San Carlos, February. A very rare species. 



180. Dysithamnus semicinereus, Sclat. 

 Several specimens, Naranjo, April. 



