214 



BIRDS OF THE REPUBLIC OF PANAMA PART 3 



Ridgway in 1911 (U.S. Nat. Mus. Bull. 50, pt. 5, pp. 117-118) 

 recognized analis as a distinct species, and grouped the races of 

 Central America and northern South America under the species name, 

 moniliger. HeHmayr (Cat. Birds Amer., pt. 3, 1924, pp. 282-288) 

 included all under analis. Peters (Check-list Birds World, vol. 7, 

 1951, pp. 240-242) accepted this procedure, which is followed here. 

 It should be added that studies by Irby Davis (Birds Mex. Central 



Figure 18. — Black-faced ant-thrush, galHto hormiguero, Formicarhis analis. 



Amer., 1972, p. 120) of the voice in males record differences suggest- 

 ing that three or more species may be included under the name analis. 



FORMICARIUS ANALIS HOFFMANNI (Cabanis) 



Myrmornis Hoffmanni Cabanis, Journ. f. Orn., vol. 9, March 1861, p. 95. 

 (Costa Rica.) 



Characters. — Dark above, somewhat olive-brown ; markings of the 

 tail, and the chestnut-brown of sides and head, dark as in F. a. 

 umbrosus. 



Measurements. — Males (10 from Chiriqui and western Costa 



