608 MR. E. W. WHITE ON BIRDS [Juiie 20, 



which is very difficult to distinguish, is of insignificant depth, very 

 squat, and covered exteriorly with lichens. 



The breeding-season lasts from September to January. The eggs, 

 of which there are three in a clutch, are of a light buff ground 

 blotched over with dull blue, on which occur brown and blackish 

 spots, the whole markings forming a thickened band extending round 

 the egg and just above the centre towards the blunt end. 



Meas. : axis 18 milUm,, diam. 14 millim. 



88. CONTOPUS BRACHYTARSUS, Scl. 



c? 2- Campo Santo, Salta, Arg. Rep., Nov. 29, 1880. 

 Iris sepia. 

 Not uncommon in the forests of Salta. 



89. Myiarchus tyranntjlus (Miiller). 



2 . Oran, SaUa, Arg. Rep., Nov. 18, 1880. 

 Iris dark sepia. 



This species seems to take the place here of the Pitangus bellicosus 

 in other parts of the Republic. 



90. Tyrannus melancholicus, Vieill. 



cJ. Oran, Salta, Arg. Rep., Nov. 18, 1880. 



$ . „ „ Nov. 13, 1880. 



Iris dark. 



I found this bird abundant in Oran. 



91. MiLVULUS TYRANNUS (Linu.). 



S. Salta, Arg. Rep., Oct. 23, 1880. 



cJ. Flores, B. Aires, Arg. Rep., Feb. 2, 1881 (immature). 



$. Salta, Arg. Rep., Oct. 23, 1880. 



Iris dark. 



This is a familiar bird throughout the Republic ; but the specimens 

 obtained in the extreme north had much longer tails than those 

 of the metropolitan district. 



The nest is built high up in lofty trees, having four eggs in a 

 clutch. The shell is elongated and rather sharply })oiuted, with a 

 white ground, spotted with rich brown, more thickly towards tire 

 blunt end ; in fact pointwards it is almost free. 



Meas. : axis 24 millim., diam. 17 millim. 



92. Chiroxiphia caxjdata (Shaw). 



cJ 5 • San Javier, Misiones, Arg. Rep., June 6, 1881. 



Iris dark. 



Of this bird I only saw two or three males and one female, 

 during my residence in Misiones, and shot them in the forest near 

 the Uruguay ; but the female was very difficult to distinguish in 

 colour from the leaves. A very striking difference in coloration, 

 however, obtains between the sexes. 



