1917.] Chapman, Distribution of Bird-life in Colombia. 451 



If, as I assume, the Cauca Valley bird is separable, the west Ecuador form 

 in this instance ranges northward in the Eastern Andes. 

 Bogotd region, 1. 



(2910a) Phyllomyias griseiceps caucse Chapm. 



Phyllomyias griseiceps caucce Chapm., Bull. A. M. N. H., Vol. XXXIV, 1915, 

 p. 645 (e. of Palmira, Cen. Andes, Col.). 



Char, subsp. — - Similar to P. g. griseiceps (Scl.) but upperparts much darker, the 

 back olive washed with blackish and not clearly defined from the crown; size larger. 



Known only from the Subtropical Zone above the Cauca Valley. 

 Miraflores, 2. 



(2916) Acrochordopus zeledoni (Lawr.). 



Pogonotriccus ? zeledoni Laws., Ann. Lye. Nat. Hist. N. Y., IX, 1868, p. 144 

 (Dota, Costa Rica). 



Tyranniscus leucogonys Scl. & Salv., P. Z. S., 1870, p. 841 (Bogotd). 



Acrochordopus leucogonys Beel. & Hakt., J. f. O., 1905, p. 26. 



Idiotriccus zeledoni Ridgw., Proc. Biol. Soc. Wash., XVIII, 1905 (Sept. 2), p. 210. 



A single specimen from Buena Vista, above Villavicencio in the east 

 Bogota district agrees, in all respects with authentic specimens of " Idio- 

 triocus" zeledoni from Costa Rica and Chiriqui, a fact which suggested 

 the specific identity of this species and Tyranniscus leucogonys Scl. & Salv., 

 based on a Bogota skin. This suspicion was confirmed on the discovery 

 that leucogonys was referred to their new genus Acrochordopus by Berlepsch 

 and Hartert, because, among other characters, it possesses a pycnaspidean 

 tarsus (fully developed in our specimen). Acrochordopus has some months' 

 priority over Idiotriccus just as zeledoni has over leucogonys, and if, as stated 

 by Berlepsch and Hartert, this species is congeneric with Acrochordopus 

 siibviridis (Pelz)., the type of the genus (a species I have not seen), it should 

 apparently stand as above. 



Buena Vista, 1. 



(2918) Phseomyias murina incomta {Cab. & Hein.). 



Elainea incomta Cab. & Hein., Mus. Hein., II, 1859, p. 59 (Cartagena, Col.). 



Occurs throughout most of the Tropical Zone of Colombia. 

 Cisneros, 1; Call, 5; Calamar, 2; Chicoral, 1; Honda, 3; Fusugasuga, 

 1; Villavicencio, 1. 



