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



olive, the crown grayer, the tail and wings grayish margined externally with oliva- 

 ceous instead of russet; size somewhat larger. 



Common in the Subtropical Zone of the eastern slope of the Central 

 Andes and of both slopes of the Eastern Andes in Colombia, and eastward 

 through the Tropical Zone to the Orinoco. 



La Palma, 2; La Candela, 4; Aguadita, 1; Buena Vista, 12; La Mo- 

 relia, 1. 



(1993a) Myrmopagis cinereiventris pallida (Berl. ds Hart.). 



Myrmotherula cinereiventris pallida Beel. & Habt., Nov. Zool., IX, 1902, p. 74 

 (Nericagua, Ven.) 



Comparison with British Guiana speciniens shows that a male from La 

 Morelia possesses the characters on which this race is based. 

 La Morelia, 1. 



(2006) Herpsilochmus rufomarginatus frater Scl. & Salv. 

 Herpsilochmus f rater Scl. & Salv., P. Z. S., 1880, p. 159 (Sarayacu, Ecuador). 

 Buena Vista, 1 ad. c? . 



2013 (part) Microrhopias grisea intermedia {Cah.). 



F[ormicivora] intermedia Cab., Arch, fiir Naturg., 1847, I, p. 225 (Cartagena); 

 Wtatt, Ibis, 1871, p. 331 (Bucaramanga). 



Formicivora grisea Cass., Proc. Acad. N. S. Plula., 1860, p. 190 (Carthagena). 

 ' Microrhopias grisea hondce Chapm., BuU. A. M. N. H., XXIII, 1914, p. 616 

 (Chieoral, Col.). 



Known from the arid coastal zone at Cartagena and eastward to the 

 Magdalena, and up the Magdalena Valley to its head. 



Assuming that our large series (18 males, 29 females) from near Santa 

 Marta represented intermedia, I described the Upper Magdalena Valley 

 bird as new on the basis of the striking difference between the females from 

 these regions, those from Santa Marta having the breast conspicuously 

 streaked with black, while the upper Magdalena female has the underparts 

 whitish more or less washed with buffy and wholly without spots. 



Now, however, Miller and Boyle send four females and a male from La 

 Playa, near the mouth of the Magdalena, which are inseparable from the 

 Upper Magdalena birds to which I have applied the name hondas; that is, 

 the females are unspotted below, and the male has the tail more narrowly 

 tipped with white than in the Santa Marta and Venezuela male. I still 



