DESCRIPTIONS OF NEW GENERA. SPECIES, AND SUBSPECIES OF 



BIRDS FROM COSTA RICA. 



BY 



George K. Cherrie, 



Taxidermist and Ornithologist of t/ie Costa Rica National Museum. 



Through the kindues.s of the authorities of the Smithsonian lustitu- 

 1 tiou I have been perinitteil to compare the specimens contained in a 

 small collection of birds brought with me fi'om Costa Rica with the 

 more extensive series belonging to the U. S. National Museum, every 

 facility for the work being given me, together with assistance by the 

 curator of the Department of Birds, as well as by Dr. Leonard Stejneger, 

 especially in the matters of nomenclature and synonymy. 



Notes on additional species are deferred until I can return to Costa 

 Eica and have access to the large collection belonging to the Museo 

 Nacioual at San Jose. 



In the following descriptions I have employed Mr. Ridgway's nomen- 

 clature in the naming of colors. 



Lophotriccus squamicristatus minor, subsp. uov, 



Mr. Ridgway having directed my attention to the decided difference 

 in color between the Costa Ricau birds and true squaniicristatus, from 

 Colombia, I have made a careful examination of the birds from the 

 two localities and deem the differences such as to warrant the sepa- 

 ration of the Costa Rica bird as a good geographical race, which I 

 have named minor from its smaller size. From the true squamicristatus 

 it is readily distinguished by the slightly brighter olive-green above, 

 by the decidedly more yellowish or yellowish-green color below and its 

 extension farther onto the breast, the under wing coverts being a little 

 deeper yellowish, and lastly, in smaller size, the wing measuring 1.90- 

 1.96, instead of 2.05-2.16, and the tail 1.6S-1.72, instead of 1.82-2. 

 (Ty])e No. 35305 ^ , U. S. National Museum, Grecia, Costa Rica, De- 

 cember 1, 1804; F. Carmiol.) 



Lophotriccus zeledoni, sp. uov. 



Another bird from Costa Rica in the U. S. National Museum collec- 

 tion deserves attention, differing as it does from both squamicristatus 

 and squamicristatus minor in being bright olive-green above, with a 

 brownish shading on the hind neck. On the head the crest feathers 

 are not nearly so well developed, the color at their base being not nearly 



Proceedings National Museum, Vol. XIT— No. 855. 



Proc. N. M. 91 — -22 337 



