96 BIRDS OF THE REPUBLIC OF PANAMA PART 3 



cover. Clearing of undergrowth was proceeding rapidly in these areas 

 and in subsequent years I was unable to find others. 



My notes record that the dorsal pterylosis showed a distinct 

 rhomboidal expansion in the center of the back that was without break 

 in the center. 



AUTOMOLUS RUBIGINOSUS SATURATUS Chapman 



Automohis nigricauda saturatiis Chapman, Bull. Amer. Mus. Nat. Hist., vol. 34, 

 December 30, 1915, p. 644. (Alto Bonito, 460 meters, Antioquia, Colombia.) 



Characters. — Much darker than A. r. fumosus; crown dark chest- 

 nut ; back and scapulars maroon-brown ; tail black ; upper breast 

 chestnut ; rest of lower surface olive, darker on the sides and flanks 

 with the under tail coverts chocolate. 



Immature (specimen from the Rio Jurubida, Choco, Colombia), 

 dorsal surface and side of head as in adult ; throat and upper foreneck 

 cinnamon-buff, becoming cinnamon on sides of neck and lower fore- 

 neck, with the tips and sides of the feathers olive-brown ; color of 

 lower breast as in adult but with scattered shaft lines of pale buff. 



Measurements. — Males (10 from Darien, Antioquia, and Choco), 

 wing 79.4-88.1 (83.8), tail 69.5-74.0 (71.7), culmen from base 23.2- 

 26.7 (24.5, average of 10), tarsus 24.5-26.9 (25.6) mm. 



Females (8 from Darien and Choc6, Colombia), wing 80.4-83.8 

 (82.0), tail 68.0-71.2 (70.0), culmen from base 22.8-24.6 (23.7, 

 average of 6) , tarsus 24.0-25.9 (24.9) mm. 



Resident. Rare; known in Panama from Cerro Pirre, and from 

 La Laguna, 975 meters elevation on the southwestern ridge of Cerro 

 Tacarcuna, Darien. 



The race was first recorded by Griscom (Bull. Mus. Comp. Zool., 

 vol. 69, 1929, p. 170) from a female collected by R. R. Benson at 

 Cana on Cerro Pirre in 1928. It was found next, also a single 

 specimen, a male, collected by Dr. Pedro Galindo, June 17, 1963, at 

 La Laguna, on the narrow ridge at the southwest of the high central 

 area of Cerro Tacarcuna. It is probable that the race has a distribu- 

 tion through the high forests along this section of the Serrania del 

 Darien. This is indicated by earlier specimens secured in 1915 by 

 H. E. Anthony at the head of the Rio Cuti, Choco, on the high slopes 

 of Tacarcuna on the Colombian side of the boundary. 



Automohis rubiginostis nigricauda, found from southwestern 

 Colombia through western Ecuador is browner (less sooty) above, 

 with the crown the same color as the back. The tail is dusky, less 

 definitely black. It is also lighter colored on breast, abdomen, and 



