Vol. xiv.] 54 



FoRMICTVORA ORENOCENSIS, H. Sp. 



c? ad. Similar in general appearance to F. grisea, F. in- 

 termedia, and F. tobagensis, but at once known by its rufous- 

 brown (instead of mouse- or earthy-brown) upper surface. 

 It differs from F. rufa (Wied) in the entire absence of the 

 rufous colour on the flanks, which are uniform white, and 

 in the much broader white tips to the tail-feathers, and larger 

 white spots to the tips of the greater upper wing-coverts. 



? ad. Similar to the same sex of F. tobagensis, but differs 

 in its rufous-brown (instead of mouse-brown) back and in 

 having the ground-colour of the lower surface pure white 

 (instead of bright buff) and the black shaft-stripes on the 

 breast, which are also extended over the throat, much 

 broader and more regular ; whereas in the allied species the 

 throat is uniform, and only the chest is indistinctly striped. 



The female of F. rufa may be distinguished by its rufous 

 flanks. 



Hab. Orinoco and Caura Rivers in Venezuela. 



Typus in Mus. Tring : <$ ad. Altagracia, Orinoco (Cherrie 

 Coll., no. 8472). 



This species has been identified by Messrs. Berlepsch and 

 Hartert as F. intermedia, Cab., from which, however, it is 

 obviously distinct. F. intermedia, described from Carthagena, 

 N. Colombia, and Aragua, N.E. Venezuela, has the back 

 always earthy brown without any admixture of reddish, and 

 the female is very differently coloured underneath. 



SERPOPHAGA PARAMBiE, n. Sp. 



$ ad. Above light ashy grey; crown slightly freckled 

 with blackish, and with a large white blotch in the middle. 

 Lesser wing-coverts like the back, the middle and greater 

 ones blackish with large white apical spots ; quills blackish, 

 the secondaries broadly edged with white ; tail-feathers dark 

 brownish grey, with ashy-grey margins. Lores whitish ; 

 sides of the head grey, with narrow white shaft-lines on the 

 ear-coverts. Below ashy grey, paler than the back, inclining 

 to white on the chin ; middle of abdomen and under tail- 

 coverts pure white, as well as the axillaries and inner edge 

 of the quills. Bill blackish ; base of the lower jaw light 

 brownish. Wing 57, tail 47, culmen 10 mm. 



