FAMILY DENDROCOLAPTIDAE 23 



Beyond Panama it crosses into northern Colombia in the far 

 northern Choco on the eastern slope of Cerro Tacarcuna and near 

 Acandi on the western shore of the entrance into Golfo del Darien. 

 Beyond this area it merges with the darker, more olive, and slightly 

 smaller race snhnifcscens. 



GLYPHORYNCHUS SPIRURUS SUBRUFESCENS Todd 



Glyphorynchus spirurus subrufcscens Todd, Ann. Carnegie Mus., vol. 31, July 

 2, 1948, p. 14. (Potedo, Choco, Colombia.) 



Characters. — Darker than G. s. suhlestus, more olive on the upper 

 surface, including the crown. 



Measurements.— -MdiXes (12 from western Colombia), wing 66.1- 

 71.8 (69.0), tail 57.4-64.0 (61.9), culmen from base 11.4-12.5 

 (12.1. average of 11), tarsus 16.3-17.1 (16.7) mm. 



Females (13 from western Colombia), wing 63.5-69.5 (66.2), 

 tail 54.0-60.1 (57.4, average of 12), culmen from base 11.2-13.7 

 (12.1, average of 12), tarsus 15.8-16.7 (16.3) mm. 



Resident. Recorded in the valley of the Rio Jaque, southwestern 

 Darien. 



The race is known from four females collected at Jaque on 

 April 4 and 6, 1946, and at the mouth of the Imamado on the Rio 

 Jaque March 30 and April 11, 1947. These have the following range 

 in measurements: wing 68.1-70.3. tail 58.4-63.8, culmen from base 

 12.3-12.9, tarsus 15.9-16.6 mm. In small size, dark coloration, and 

 more cinnamon-bufif throat, they agree fully with siihrufescens, here at 

 its northwestern limit. The race is found in Colombia from the 

 lower Atrato Valley in northern Choco (north to Acandi) and adja- 

 cent Antioquia (Villa Artiaga), south in western Colombia to 

 Narino (probably to northwestern Ecuador.). 



XIPHOCOLAPTES PROMEROPIRHYNCHUS (Lesson): 

 Strong-billed Woodcreeper, Trepador Grande 



Dendrocolaptcs promcropirhynchns Lesson, Rev. Zool., vol. 3, September 1840, 

 p. 270. (Bogota, Colombia.) 



A strong-bodied, robust bird, decidedly larger than other wood- 

 creepers found in the Republic ; bill long and strong. 



Description. — Length 285-330 mm. Bill longer than head, deeper 

 than broad at the level of the nostrils. Adult (sexes alike), crown 

 and hindneck somewhat brownish black, lined with buff; back, 

 scapulars, and wing coverts brown, often with a slight olive cast ; 



