FAMILY TYRANNIDAE 537 



brilliantly. Others were seen there from late February to March 11 

 resting quietly in low shrubs. Hasso von Wedel collected several near 

 Perme and Puerto Obaldia, eastern San Bias, in 1930. March 16, 

 1963, I found a male at the latter place ranging actively among vines 

 and leaves 4 or 5 meters from the ground in the thickets beside a 

 small quebrada. At the old village site on the base of Cerro Tacarcuna 

 on March 14, 1964, a fully feathered juvenile with its female parent 

 ranged in undergrowth in dense forest. As they rested on small, open 

 limbs they resembled tiny knots of wood rather than birds. 



Their call is a high-pitched, single syllable, tseep, sometimes given 

 singly, sometimes repeated rapidly several times, so high-pitched 

 in sound that it may not be recognized as the note of a bird. The tiny 

 size of the bird adds to the difficulty. 



North of Panama, according to Slud, this species ranges along 

 the Caribbean slope to the lowlands of northeastern Costa Rica. To 

 the south in Colombia it is found near the Pacific coast of Choco to 

 northwestern Ecuador, and also in the lower Atrato Valley, the upper 

 Rio Sinu (Quebrada Salvajin) in Cordoba, and in the upper valleys 

 of the Rio Cauca (to Taraza), and its tributary the Rio Nechi (to 

 Hacienda Belen) in Antioquia. The type specimen, a male, in the 

 U.S. National Museum, is from Angostura in the Province of 

 Cartago, Costa Rica. 



Zimmer (Amer. Mus. Nov., no. 1066, May 3, 1940, p. 22) Hsted 

 this bird as a race of Perissotriccus ecaudatus described from Bolivia, 

 which in two subspecies ranges from Peru through northern Brazil, 

 eastern Colombia, and Venezuela to the Guianas. In this action he 

 stated that "intergradation is not established," nor is it shown by 

 the additional material that I have seen. P. ecaudatus is plain gray 

 on the crown, with restricted white on the lores and around the eye, 

 and whiter under surface. The transfer of these two species to the 

 genus Myiornis also does not appear justified from present data, in 

 view of the more rounded wing, decidedly longer tail, more slender 

 bill, and greater development of the rictal bristles shown in Myiornis 

 auricularis, type species of the genus. 



PSEUDOTRICCUS PELZELNI BERLEPSCHI Nelson: Olive- 

 crowned Pigmy-tyrant, Moscareta Coronilla Aceitunada 



Psendotriccus pelceini berlepschi Nelson, Smithsonian Misc. Coll., vol. 60, no. 21, 

 February 26, 1913, p. 1. (Head of Rio Limon, Cerro Pirre, 1585 meters 

 elevation, Darien.) 



Small ; dark-colored, with black bill, bushy, dark-colored crest, and 

 cinnamon edgings on wings and tail. 



