10 



TYRANNID.S. 



a. 3 ad. sk. 



b. 3 ad. sk. 



c. d. 3 $ ad. sk. 



e. <$ ad. sk. 

 /. Ad. sk. 



Cordova (Doering). 

 Cosquin, Cordova ( White). 

 Rio Negro of Patagonia 



{Hudson). 

 Eio Negro of Patagonia 



{Hudson). 

 Rio Negro of Patagonia 



{Hudson). 



Sclater Coll. 

 Salvin-Goduian Coll. 

 Sclater Coll. 



Salvin-Godman Coll. 



Purchased. 



9. Tsenioptera rubetra. 



Tamioptera rubetra, Burnt. Journ. f. O. 1860, p. 247 ; 

 Reise, ii. p. 461 ; Scl. Ibis, 1866, p. 59 ; id. P. Z.S. 1 



id. La-Plata 



1872, p. 541; 



Scl. et Salv. Nomenel. p. 42 ; Hudson, P. Z. S. 1872, p. 541 (Rio 



Negro of Patagonia) ; Dumford, Ibis, 1877, p. 34, et 1878, p. 394 



(Patagonia) ; Scl. et Huds. Arc/. Orn. i. p. 120, pi. vii. 



Muscisaxicola rubetra, Scl. Cat. A. B. p. 206. 



Above sandy brown ; lores and superciliaries white ; wings black, 

 greater coverts and outer secondaries edged with whitish, lesser 

 coverts like the back ; tail black, outer web of the outer tail- 

 feather and tips of others white :" below white, with black striations 

 on the sides of the throat and on the breast ; flanks, under wing- 

 coverts, and inner webs of the primaries deep rufous ; two outer 

 primaries acuminated : whole length 7-5 inches, wing 4-7, tail 32. 

 Female similar, but rather paler above, throat and breast washed 

 with ochraceous, and outer primaries not acuminated. 



Hah. Interior of Argentine Republic and Rio Negro of Patagonia. 



The striations on the breast and the deep rufous under wing- 

 coverts at once distinguish this fine species. 



a. 5 ad. sk. Pampas of Arg. Republic Salvin-Godman Coll. 



{Let/bold). 



b. Ad. sk. Argentine Republic. Sclater Coll. 



c. d. 3 $ ad. sk. Rio Negro of Patagonia Sclater Coll. 



{Hudson). 

 e,f. d $ ad. sk. Rio Negro of Patagonia Salvin-Godman Coll. 



{Hudson). 

 (j. 5 ad. sk. Rio Negro of Patagonia Purchased. 



{Hudson), 

 h, i. cJ ? ad. sk. Chupat, Patagonia. C. Dumford [C.]. 



4. 0CHTH0DI.ffiTA. 



Type. 



Ochthodiseta, Cab. et Hein. Mus. Hein. ii. p. 48 (1859). 0. fumigatus. 



This little group contains the larger and stronger forms of 

 Ochthceca. It is confined to the Andes of Venezuela, Colombia, 

 Ecuador, and Bolivia. 



Key to the Species. 



A. Above and beneath smoky brown. 



a. Under tail-coverts uniform with belly . . . 



1. fumigatm, p. 17. 



