46 BANGS CHIRIQUI BIRDS [ P ^jf j 



Z.C. 

 Ill 



mens from Loma del Leon, Panama. The latter are rather 

 troublesome, and perhaps really belong with some of the South 

 American races of the S. mexicanus group. They are paler than 

 the Chiriqui skins, and in this respect come nearer to true mexi- 

 canus. The hazel color of the throat is, however, much more 

 extended onto the breast and upper belly. 



Margarornis rubiginosa Lawr. 



Ten specimens, both sexes, Boquete and Volcan de Chiriqui, 

 5000 to 11,000 feet, February to June. 



Premnoplex brunnescens Scl. 



Eleven specimens, both sexes, Boquete and Volcan de Chiriqui, 

 4000 to 7700 feet, January to April. 



Glyphorhynchus cuneatus (Licht.). 



One female, Caribbean slope of Volcan de Chiriqui, 7000 feet. 

 June 16. 



Dendrocincla ruficeps Scl. and Salv. 



Six specimens, both sexes, Boquete, 4000 to 4500 feet, February 

 and March. 



Sittasomus levis 1 sp. nov. 



Eight specimens, both sexes, Boquete, 4000 to 5000 feet, Jan- 

 uary to April. 



Type, from Boquete, southern slope of Volcan de Chiriqui, 4000 feet alti- 

 tude, $ adult, no. 8568, coll. of E. A. and O. Bangs, collected Jan. 21, 1901, by 

 W. W. Brown, Jr. 



1 Levis — quick, nimble. 



