374 Bulletin American Museum of Natural History. [Vol. XXXVI, 



collected series from British Guiana confirm the characters ascribed to it 

 by Hellmayr (1. c). 



Alto Bonito, 4; Dabeiba, 7; Quibdo, 2; Novita, 2; Novita Trail (2000 

 ft.), 1; Juntas de Tamana, 1 ; Noanama, 3; Buenaventura, 6; Los Cisneros, 

 5; Tumaco, 4; Barbacoas, 2; Puerto Valdivia, 3; Malena, 1. 



(1972) Myrmopagis fulviventris (Lain:). 



Myrmotherula fulviventris Lawb., Ann. Lye. N. H. N. Y., VII, 1862, p. 468 

 (Panama); Wyatt, Ibis, 1871, p. 531 (Naranjo); Scl. & Salv., P. Z. S., 1879, p. 

 525 (Remedios). 



Myrmotherula omata Cass., Proo. Acad. N. S. Phila., 1860, p. 191 (R. Truando). 



Myrmotherula viduata Hart., Nov. Zool., 1898, p. 492 (Cachabi, n. w. Ecuador). 



Myrmotherula fulviventris viduata Hellii., P. Z. S., 1911, p. 1162 (El Tigre; 

 N6vita; Noanamd). 



Inhabits the Tropical Zone of the Pacific coast, the eastern slope of the 

 Western Andes and west slope of the Central Andes. Fifteen specimens 

 (6 males, 9 females) from this region agree with eight (6 males, 2 females) 

 from Ecuador. Hellmayr {I. c.) has already alluded to this resemblance 

 between western Colombia and western Ecuador birds. I am, however, 

 unable to separate them from true fulviventris of which I have seen seven 

 (3 males, 4 females) Panama specimens, including the type. 



Alto Bonito, 3; Juntas de Tamana, 4; Barbacoas, 3; Puerto Valdivia, 

 4; La Frijolera, 1; Miraflores, Cen. Andes, 1 9 ; Salencio, Novita Trail, 

 e. slope, 1. 



(1975) Myrmopagis hsematonota (Sri.). 



Formicivora hcematonota Scl., P. Z. S., 1857, p. 48 (Chamicuros). 



An adult male from La Morelia agrees with others from the Orinoco. 



(1977) Myrmopagis omata ornata (Scl). 

 Formicivora omata Scl., Rev. Zool., 1853, p. 480. (New Grenada). 



Our four speciniens were taken at Buena Vista at the upper limit of 

 the Tropical Zone in the Eastern Andes. They are doubtless topotypical. 

 Buena Vista, 4. 



(1984) Myrmopagis axillaris melaena (Scl). 

 Formicivora meloena Scl., P. Z. S., 1857, p. 130 (Bogotii). 

 'Our specimens from the eastern Andes agree on the whole with a ' Bo- 



