FAMILY FURNARIIDAE 65 



in the western San Bias, I found them common in January and 

 February 1957. In Darien they are fairly common on Cerro Pirre, 

 where Goldman found them in 1912, Benson in 1928, and I in 1961. 

 I found them common also on the upper Rio Jaque in 1947, but did 

 not see them lower down near the mouth of the river. The race 

 ranges through western Colombia to western Ecuador. 



Stomachs that I have examined have held small beetles of several 

 families, a variety of hemiptera, fly larvae, bits of caterpillars, and 

 of spiders, including eggs. 



An egg of the allied Synallaxis b. hrachyura collected by Salmon 

 at Remedios, Antioquia, reported by Sclater and Salvin (Proc. Zool. 

 Soc. London, 1879, p. 521) is recorded as "pale greenish blue" with 

 measurements of21.6xl6.5 mm. 



CRANIOLEUCA ERYTHROPS (Sclater) : Red-faced Spinetail, 

 Coliaguda Cariroja 



Synallaxis erythrops P. L. Sclater, Proc. Zool. Soc. London, pt. 28, May 1860, 

 p. 66. (Pallatanga, Ecuador.) 



Small ; long-tailed and slender ; crown and sides of head russet. 



Description. — Length 145-160 mm. Adult (sexes alike), top, 

 nape, and sides of head, including the malar region, cinnamon-rufous ; 

 hindneck, back, rump, and upper tail coverts olive-brown; wing 

 coverts, wings, and tail cinnamon-rufous, becoming darker, more 

 reddish brown on the primaries, which also are dusky on the inner 

 webs and toward the tips ; under surface light to buflfy olive ; flanks 

 and under tail coverts, and in some the abdomen, tinged with reddish 

 brown; under wing coverts ochraceous-bufif ; inner margin of webs 

 of primaries and secondaries pinkish bufif. 



Immature, crown olive-brown like back ; a narrow superciliary line 

 russet; sides of head and ramal area dull reddish brown, with the 

 posterior auricular area dark olive ; somewhat lighter, faintly bufify 

 on under surface, with the flanks and under tail coverts more reddish 

 brown. 



This spinetail, a bird of the Subtropical Zone in the mountains, as 

 a species is found in Costa Rica and western Panama, appears again 

 in Darien, and then ranges from western Colombia south to western 

 Ecuador. It is local, but fairly common in the western end of its 

 range ; rare and little known from Darien southward. Two races are 

 recorded from Panama, one in the western, the other in the eastern 

 mountains. 



