44 BANGS CHIR1QUI BIRDS [ Voi. Ill ' 



under parts are strongly washed with ochraceous. This bird is 

 probably older than no. 8553, as several of the chestnut feathers, 

 characteristic of the adult, are appearing on the crown. No. 8555 

 has nearly attained the adult dress, but still retains the postocular 

 stripe (which becomes quite obsolete in the adult) and has the 

 under parts still washed with ochraceous. No. 8556 is similar to 

 it. 



The olive cap, the pale postocular stripe and the ochraceous 

 tinge of the under parts are all merely marks of immaturity, and 

 gradually disappear as the bird attains the plumage of the fully 

 adult. 



Pseudocolaptes lawrencii Ridg. 



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

 4000 to 10,300 feet, April and May. 



Automolus rufobrunneus (Lawr.). 



Seven specimens, both sexes, Boquete and Volcan de Chiriqui 

 and Caribbean slope of Volcan de Chiriqui, 4500 to 7700 feet, 

 February, March, April and June. 



Philydor panerythrus rufescens (Lawr.). 



Two specimens, male and female, Boquete, 6500 feet, March, 

 and Caribbean slope of Volcan de Chiriqui, 7000 feet, June. 



Xenicopsis variegaticeps Scl. 



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

 4000 to 4800 feet, February to April. 



Xenicopsis subalaris lineatus (Lawr.). 



Four adults, both sexes, Boquete and Volcan de Chiriqui and 

 Caribbean slope of Volcan de Chiriqui, 4500 to 7800 feet, Febru- 

 ary, April and June. 



