346 Annals of the Carnegie Museum. 



shown by Mr. Hellmayr (Novitates Zoologicee, XIII, 1906, 323). 



In Juvenal and first winter plumage the remiges and rectrices are 

 prominently edged with ochraceous tawny, which makes the species 

 look very much like some of its allies. Spring birds may even' show 

 traces of this rusty color. In juvenal dress, illustrated by individuals 

 taken on June 6 and July 25, the yellow below is very pale, the undei 

 tail-coverts buffy-tinged, and the back dull dusky olive, with the pileum 

 darker, but not so strongly contrasted as in the adult. 



This is the common Myiarchus of the region stretching from sea- 

 level up to 5,000 feet, which includes all of the Tropical Zone. Its 

 altitudinal range is thus considerably more extensive than that of the 

 other two local species of this group. It is particularly abundant in 

 the coffee haciendas. 



298. Myiarchus ferox panamensis Lawrence. 



Myiarchus tyrannulus (not Muscicapa tyrannulus Miiller) Salvin and God- 

 man, Ibis, 1880, I2S (Santa Marta). 



Myiarchus ferox (not Muscicapa ferox Gmelin) Sclater, Cat. Birds Brit. 

 Mus., XIV, 1888, 253 (Santa Marta). — Bangs, Proc. Biol. Soc. Washington, 



XII, 1898, 137 ("Santa Marta"). — Allen, Bull. Am. Mus. Nat. Hist., 



XIII, 1900, 142 (Bonda). 



Myiarchus ferox panamensis Nelson, Proc. Biol. Soc. Washington, XVII, 

 1904, 29 (Santa Marta, in range). — Ridgway, Bull. U. S. Nat. Mus., No. 

 50, IV, 1907, 640 (Santa Marta and Bonda, in range; meas. ; references). 



Seventeen specimens : Bonda, Cautilito, Don Diego, La Tigrera, Tu- 

 curinca, Fundacion, and Punto Caiman. 



Compared with a series of typical M. ferox ferox from Cayenne the 

 present form is strikingly distinct. In ferox the upper parts are 

 dark olive, shading into nearly dusky on the pileum, while in pana- 

 mensis these parts are much paler, between citrine drab and deep 

 olive. The wings, tail, and bill are also very much darker, nearly 

 black indeed, in the typical form; the gray of the throat and breast is 

 deeper, and the yellow beneath is duller than in panamensis. In fact 

 the latter is sufficiently different, as distinctions go in this genus, to 

 stand as a full species, as given by von Berlepsch {Ornis, XIV, 1907, 

 477), were it not for the fact that in all respects the Orinoco form, 

 M. ferox venezuel/ensis, is exactly intermediate. 



An example dated October 7 shows the moult of the remiges and 

 rectrices in progress. Another, taken August 13, if referable to this 



