1917.] Chapman, Distribution of Bird-life in Colombia. 457 



(2957) Elsenia pudica pudica Scl. 



Elainia pudica Scl., P. Z. S., 1870, p. 833 ('Bogotd,'). 



Elcmiafrantzi Scl. & Salv., P. Z. S., 1879, p. 513 (Medellin; Sta. Elena). 



Elcenia browni Bangs, Proc. Biol. Soc. Wash., 1898, p. 158 (Pueblo Viejo, Santa 

 Marta Mts., alt. 8000ft., Col); Allen, Bull. A. M. N. H., XIII, 1900, p. 147 (El 

 Lorenzo; El Libano; Valparaiso). 



Elomia frantzi pudica Bekl., Proc. 4th Int. Cong., 1907, p. -416. 



Taken only in the Subtropical Zone of the Central and Eastern Andes. 

 Comparison of seven specimens, including ten from near Bogota which may 

 be considered typical, with twelve from the Santa Marta Mts. confirms 

 von Berlepsch's {I. c.) belief that birds from that region {E. hrowni Bangs) 

 are not separable from pudica Scl. 



The Bogota birds average darker but the difference is slight and wholly 

 bridged by individual variation. I agree with Ridgway that this bird is not 

 specifically related to E. frantzi {of. Bull. U. S. N. M. 50, IV, p. 897), but 

 as stated below, suspect that it does intergrade with E. brachyptera Berl. 



Barro Blanco, 4; Salento, 1; Laguneta, 1; Rio Toche, 2; Fusugasuga, 

 3; Sta. Elena, 10; Choachi, 4; Subia, 2; Pradera, 1. 



(2965a) Myiopagis viridicata accola Bangs. 



Myiopagis placens accola Bangs, Proc. N. E. Zool. Club, III, 1902, p. 35 (Boquete, 

 Pan.). 



Inhabits the Tropical Zone of western Colombia from the Pacific coast 

 to the Cauca Valley. The determination of our specimens of this group 

 has involved a prolonged study of topotypical material of all the forms con- 

 cerned. The conclusions reached in regard to the distribution of M. v. 

 accola and M. v. palleiis are at variance with those presented by previous 

 authors, and also apparently with the laws of distribution, but they are 

 evidently supported by the specimens examined. 



These indicate that accola, described from western Panama, ranges 

 northward at least through Nicaragua, and although Panama Canal Zone 

 (Lion Hill?) specimens are referable to pollens of northern Colombia, accola 

 appears again in western Colombia. 



The absence of records from Panama, east of Chiriqui, may be due to lack 

 of specimens, to a hiatus in the range of this form, or to parallelism. If it oc- 

 curs in the Canal Zone it must necessarily be restricted to the southern slope 

 since specimens collected by McLeannan and Galbraith, doubtless at Lion 

 Hill, are unquestionably referable to pollens. If it is not found in Panama 

 east of Chiriqui we have not to resort to the theory of parallelism to account 

 for its reappearance in Colombia, since we have numerous similar cases, 

 though, it is true, they are chiefly among species of the Subtropical Zone. 



However this may be, the fact remains that ten specimens from Chiri- 



