7() TYRANNID.K. 



a, b. Ad. sk. Bogota. Sclater Coll. 



r, d. Ad. sk. Bogota. Salvin-Godman Coll. 



e,f. Ad. sk. Bogota. Jardine Coll. 



g. Ad. sk. Bogota. Gould Coll. 



h. c? ad. sk. Frontino, Antioquia (Salmon). Salvin-Godman Coll. 



I. Ad. sk. Medellin, Antioquia (Salmon). Salvin-Godman Coll. 



j. Ad. st. Bogota. Purchased. 



15. Todirostrum rufigene. 



Todirostrum ruficeps, Scl. P. Z. S. 1859, p. 144 (Ecuador). 

 Todirostrum rufigene, Scl. et Salv. P. Z. S. 1877, p. 522. 

 Poecilotriccus ruilgenis, Berl. J. f. O. 1884, p. 298. 



Above clear olive, crown red ; ear-coverts pale rufous ; wings aud 

 tail black, margined with olive; coverts tipped with pale yellow: 

 beneath yellow, throat in the middle white, at the sides washed with 

 rufous ; bill black, feet pale brown : whole length 2-5 inches, wing 

 1-8, tail 1-4. 



Hah. Western Ecuador. 



Distinguished from T. ruficeps by the rufous sides of the head. 



a. Ad. sk. Pallatanga, Ecuador (Fraser). Salvin-Godman Coll. 



b. <S ad. sk. Cayandeled, Ecuador (Stokmann). Sclater Coll. 



c. Ad. sk. Mongi, Ecuador (Buckley). Salvin-Godman Coll. 



d. Ad. sk. Imtac, Ecuador (Buckley). Salvin-Godman Coll. 



16. Todirostrum lenzi. 



Todirostrum lenzi, Berl. J.f. 0. 1884, p. 249, t. i. figs. 1, 2. 

 Poecilotriccus lenzi, Berl. J.f. 0. 1884, p. 298. 



Similar to T. ruficeps and T. rufigene : but different from the 

 former in the uniform rusty-red colour of the head, and from the 

 latter in the brighter colour of the head, its greater extension over 

 the nape, the transverse rufous line across the throat, and the 

 brighter yellow abdomen (Berlepscli). 



Hob. Bucaramanga, Colombia. 



24. 0NC0ST0MA. 



Type. 



Oncostoma, Scl. Cat. A. B. p. 208 (1802) 0. cinereigulare. 



This little genus comprehends two Central-American species 

 closely allied to Todirostrum in general structure, but distinguished 

 by the much incurved and elevated culmen of the bill. 



Key to the Species. 



A. Throat cinereous 1. cinereigulare, p. 77. 



15. Whole under surface yellow 2. olivacemn, p. 77. 



