EMPIDONOMUS AURANTIO-ATRO-CRISTATUS. 157 



Description. Above dark cinereous, more or less olivaceous ; wings and tail 

 blackish ; wing- coverts and outer secondaries with more or less defined edgings 

 of dirty white; beneath, throat and breast cinereous, abdomen and under wing- 

 coverts sulphur-yellow ; bill dark brown ; feet blackish : whole length 7'0 inches, 

 wing 3-6, tail 3-4. Female similar. 



Hob. Southern Antilles, and South America down to Argentine 

 Republic. 



There has been great confusion between this species and M . tyran- 

 nulus, from which the present bird may be distinguished by the absence 

 of the rufous edgings to the inner webs of the rectrices. 



Examples of M. ferox are in the British Museum from Punta Lara 

 (Durnford), Mendoza (Weiss haupt] 3 and Buenos Ayres (Haslehust). 



168. MYIARCHUS ATRICEPS, Cab. 



(BLACK-HEADED TYRANT.) 

 Myiarchus atriceps, Cab. J.f. O. 1883, p. 215. 



Description. Above greenish olive, cap black ; wings and tail blackish, more 

 or less margined with brownish ; beneath, throat and neck pale grey ; abdomen 

 and under wing-coverts pale sulphur-yellow ; inner margins of wing-feathers 

 fulvous ; bill dark horn-colour ; feet black : whole length 7'0 inches, wing 3*7, 

 tail 3-5. Female similar. 



Hab. N. Argentina, Bolivia, and S. Pern. 



Schulz found this species as a summer visitor in Tucuman. 



169. EMPIDONOMUS AUEANTIO-ATRO-CRISTATUS 



(d'Orb. et Lafr.). 

 (BLACK-AND-YELLOW-CRESTED TYRANT.) 



Tyrannus aurantio-atro-cristatus, d'Orb. Voy., Ois. p. 312 (Corrientes) ; Sd. 

 et Salv. NomencL p. 53 ; Barrows, JBull. Nutt. Orn. Club, vol. viii. p. 202 

 (Entrerios). Tyrannus aurantio-atro-cristatus, Sunn. La-Plata Eeise, 

 ii. p. 453 (Rio Uruguay, Entrerios, Mendoza). 



Description. Above cinereous ; cap shortly crested, black, with a large vertical 

 spot of bright yellow; wings and tail brownish black, wing-coverts and 

 secondaries slightly edged with whitish ; beneath as above but rather paler, and 



