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



(3468) Leucolepis dichrous (Scl. & Sah.). 

 Cyphorhinus dichrous Scl. & Salv., P. Z. S., 1879, p. 492, pi. xH (Remedios). 



Common in the Subtropical Zone of the Western Andes, and a single 

 specimen was taken in the Central Andes. The type, said to be from 

 Remedies', was probably taken above Salmon's headquarters at that place, 

 the altitude of which is given by Sclater as 2360 feet. 



La Frijolera, 1; San Antonio, 7; Cocal, 2; El Eden, 1. 



(3472) Microcerculus marginatus marginatus (Scl). 

 Heierocnemis marginata Scl., P. Z. S., 1855, p. 145 (Bogotd). 



I have no material for comparison with our three specimens which, 

 however, were taken well within the range of this race {cf. Hellm. Nov. 

 Zool., 1906, p. 354). 



Florencia, 2; La Morelia, 1. 



(3473) Microcerculus marginatus occidentalis Hellm. 



Microcerculus marginatus occidentalis Hellm., Nov. Zool., XIII, 1906, p. 354 

 (Lita, N. W. Ecuador). 



Found by us only in the Tropical Zone of the Pacific coast. Our Colom- 

 bian specimens agree with one from western Ecuador, and the series as a 

 whole is darker than three specimens of M. m. marginatus from Amazonian 

 Colombia. 



Novita, 2; San Jose, 1; Barbacoas, 6. 



(3476a) Microcerculus squamulatus antioquensis Chapm. 



Microcerculus squamulatus antioquensis Chapm., Bull. A. M. N. H., Vol. XXXIV, 

 1915, p. 647 (Dabeiba, R. Suoio, w. Colombia). 



Char, subsp. — Most closely resembling M. squamulatus corassus (Bangs), but 

 .averaging larger with a longer bOl; underparts more strongly and definitely barred; 

 upperparts, flanks, ventral region and under tail-coverts darker, more rufescent 

 cinnamon-brown instead of Saccardo's-umber. 



Differing from M. squamulatus twniatus (Salv.) in the color of the upper- 

 parts, flanks and ventral region as it does from corassus, and in having the 

 feathers of the breast and upper abdomen basally black and more narrowly 

 white subterminally. Differing from M. squamulatus squamulatus Scl. & 

 Salv. in having the breast and upper abdomen regularly and sharply barred 



