Todd-Carriker : Birds of Santa Marta Region, Colombia. 455 



more could easily have been secured had it not been for the hordes 

 of mosquitoes encountered at every step. It was always in pairs or 

 family groups, and usually in company with other birds. 



431. Ateleodacnis leucogenys (Lafresnaye). 



Nineteen specimens: Fundacion, Tucurinca, and Valencia. 



This is another of the additions to the Santa Marta list made by Mr. 

 Carriker. The series differs from the description of A. leucogenys 

 in certain particulars, being smaller, and having- a white patch on the 

 rump, and a decided white spot at the base of the primaries (in most 

 specimens). With regard to the question of size, the following table 

 of measurements will throw some light on the question. Only adult 

 males have been included. 



No. Locality. Wing. Tail. Tarsus. 



42678 1 Fundacion, Colombia 48.5 29 13.5 



42867 1 Fundacion, Colombia 49 



42979 1 Fundacion, Colombia 49 



42997 1 Fundacion, Colombia 50 



49620 1 Fundacion, Colombia 47 



497 1 5 x Fundacion, Colombia 49 



49716 1 Fundacion, Colombia 52 



49419 1 Tucurinca, Colombia 48 



5766 2 " Colombia " (Type of species) 53.5 



40393 3 Bogota, Colombia 54 



40394 3 Bogota, Colombia 52 



40391 3 Bogota, Colombia 53 



122894 3 Honda, Colombia 52 



47731 1 Sierra de Carabobo, Venezuela 52 



48082 1 Sierra de Carabobo, Venezuela 53 



48530 1 Sierra de Carabobo, Venezuela 51 



It appears, therefore, that while birds from the Santa Marta region 

 average a little smaller, the difference is not so great as to justify 

 formal subdivision of the species. The white patch on the lower 

 rump (a character entirely overlooked by the original describer) ap- 

 pears in every male specimen of this bird examined, including La- 

 fresnaye's type, kindly loaned by Mr. Bangs, although its size varies 



1 Collection Carnegie Museum. 



2 Lafresnaye Collection, in Museum of Comparative Zoology. 



3 Collection American Museum of Natural History. 



