FAMILY FORMICARIIDAE 



165 



among the leaves, moving quietly, usually with the members of each 

 pair not separated far from one another. In their short flights the 

 black-and-white pattern of the male shows clearly, the duller colors 

 of the female less evidently. The tail in such movement appears 

 noticeably short. In Darien, the country men living with me in camp 

 called them Don Pelotita (little Mr. Ball), from their fluffy rounded 

 appearance. 



Figure 15. — Streaked ant-wren, hormiguerito rayado, Myrmotherula 

 surinamensis pacifica. 



A nest under construction in early January, near Gamboa, Canal 

 Zone, was located 6 meters or so from ground level in a small stand 

 of low trees on an open playon along the Rio Frijoles. The external 

 outline was formed of slender bits of green vines with tiny leaves 

 along the stem. These were molded to form a rounded basket attached 



