130 On two new Species of Birds from Bogota. 



It seems that Mr. Sclater was already acquainted with 

 this species, but did not distinguish it from M. longipes, auct., 

 from which, to my mind, it differs in several striking points 

 expressed in the above diagnosis. 



M. longipes, auct., of which I have two males from Puerto 

 Cabello, Venezuela, and Trinidad, has the top of the head 

 always rufous brown, but of a darker shade than the back. 

 The anterior portion of the front only in M. longipes is 

 cinereous, and there is a well-defined broad postocular stripe 

 of a clear whitish cinereous. In M. houcardi, on the contrary, 

 all the upper parts of the head are of a uniform dark ashy 

 grey. The breast and the belly in M. longipes are pure 

 white, there being only a small greyish border to the black 

 of the throat laterally. In M. bovcardi all the upper breast 

 beneath the black jugulum and the sides of the upper belly 

 are pure grey, the white being restricted to a mesial line on 

 the belly. The flanks in M. longipes are of a clear ochra- 

 ceous, dark rufous brown or nearly olivaceous brown in 

 M. boucardi. The tibise, in the former ochraceous, appear 

 more or less greyish in M. boucardi. M. boucardi has a 

 stronger longer bill, and both bill and feet are much darker 

 than in M. longipes. The female M. boucardi in the same 

 way differs from that of M. longipes in the darker colour of 

 the bill and feet, and in possessing a longer and stronger bill ; 

 it further differs in having the upper parts of the head of a 

 dark brownish cinereous (instead of rufous brown), and in 

 presenting a much darker rufous on the throat and jugulum 

 below. The yellowish rufous of the sides of the body is also 

 more extended. 



I may take this opportunity to call attention to the 

 original description of the so-called M. longipes. I must 

 confess that I cannot at all recognize the species usually 

 so called in the description given by Vieillot, in the Nouv. 

 Diet. xii. (1817) p. 113, of his Myrmothera longipes. Never- 

 theless our bird is well described afterwards under the same 

 name by Swainson in Zool. Journ. ii. (1825) p. 152. As it 

 appears that other synonyms are wanting, I propose to apply 

 to it the new name, Myrmeciza swatnsoni, Berl. t 

 Muenden, November 1887. 



