1917.] Chapman, Distribution of Bird-life in Colombia. 541 



(3595) Pachysylvia minor {Berl. & Tacz.). 

 Hylophilus minor Berl. & Tacz., P. Z. S., 1883, p. 542 (Chimbo, w. Ecuador) . 



A male from Los Cisneros extends the known range of this species into 

 Colombia. It is somewhat darker above and has less greenish yellow below 

 than Ecuador specimens. 



Los Cisneros, 1. 



(3603) Cyclarhis flavipectus canticus Bangs. 



Cydarhis flavipectus canticus Bangs, Proc. Biol. Soc. Wash., XII, 1898, p. 142 

 (Santa Marta); Allen, Bull. A. M. N. H., XIII, 1900, p. 171 (Bonda). 



We found this form only in the Magdalena Valley and a native skin 

 purchased was from the western slope of the Eastern Andes. In the Tropi- 

 cal Zone at the eastern base of the range it is replaced by a well-marked 

 representative form which appears to be unnamed. 



Comparison of eleven topotypical examples of flavipectus with an equal 

 number of topotypical specimens of canticus supports the claims of the last- 

 named form to recognition as a well-marked race. It may be distinguished 

 by its generally smaller bill, darker green upperparts, decidedly greener 

 outer, paler yellow inner margins of the wing-feathers, more extensively and 

 clearer yellow breast, and richer ochraceous wash on the flanks and abdomen. 



Upper Magdalena Valley birds have the flanks and abdomen with less 

 ochraceous tinge than in Santa Marta birds, but they have their small bill, 

 generally dark green back and comparatively pale margins to the wing-quills, 

 and, geographical reasons aside, are obviously to be referred to canticus 

 rather than to flavipectus. 



The ochraceous tinge on the flanks sometimes is present in other forms 

 of this group but appears to be always evident in Santa Marta birds. 



Chicoral, 2. 



(3603a) Cyclarhis flavipectus parvus subsp. nov. 



Char, suhsp. — Smallest form of the group; color of upperparts as in Cyclarhis 

 flavipectus canticus Bangs, and consequently appreciably darker than in C. f. flavi- 

 pectus Scl., with the inner margins of the wing-quills paler yellow; yellow of 

 imderparts averaging greener and more restricted, the flanks whiter tha^n in either 

 flavipectus or canticus'. 



Type. — No. 122537, Am. Mus. Nat. Hist., cf ad., Villavioencio (alt. 1600 ft.), 

 Colombia, March 7, 1913; George K. Cherrie. 



