FLUVICOLA ALBIVENTRIS. 121 



118. OCHTHffiCA LEUCOPHRYS (d'Orb. et Lafr.). 

 (WHITE-BROWED TYRANT.) 



Ochthceca leucophrys, Scl. et Salv. Nomencl. p. 42; White, P. Z. 8. 1882, 

 p. 603 (Catamarca). 



Description. Above dark cinereous, rump rufescent; wings blackish, cross- 

 bands on wing-coverts and edges of outer secondaries rufous ; tail blackish, 

 outer web of external rectrix white ; beneath pale cinereous ; lower belly, 

 crissum, and under wing-coverts white ; bill and feet black : whole length 5'2 

 inches, wing 3*0, tail 2-7. 



Hab. Bolivia and Northern Argentina. 



A single specimen of this bird was obtained by White at Fuerte de 

 Audalgala, Catamarca, in September 1880, during a snow-storm. 



119. SAYORNIS CINERACEA (Lafr.). 

 (ASHY TYRANT.) 



Sayornis cineracea, Scl. et Salv. Nomencl. p. 43. Aulanax latirostris, Cab. 

 J.f. O. 1879, p. 335 (Tucuman). 



Description. Above dark cinereous ; head sooty black ; wings and tail 

 blackish, outer margins of the wing-coverts and secondaries and outer web of 

 the external tail-feather white ; below sooty black, middle of belly and under 

 wing-coverts white, flanks and crissum dark cinereous ; bill and feet black : 

 whole length 9-5 inches, wing 3*4, tail 3-1. Female similar. 



Hab. Colombia, Venezuela, Ecuador, Peru, Bolivia, and N. Argentina. 



Examples of this wide-ranging species, obtained by Doring in 

 Tucuman, are referred by Dr. Cabanis to his subspecies " latirostris" 

 which seems to us hardly distinct from S. cineracea. 



120. FLUVICOLA ALBIVENTRIS (Spix). 

 (WHITE-BELLIED TYRANT.) 



Fluvicola albiventris, Scl. et Salv. Nomencl. p. 43 ; Durnford, Ibis, 1878, 



p. 59 (Buenos Ayres). 



Description. Above black ; front half of head, narrow band across the rump, 

 and slight edgings to wing-coverts and outer secondaries white ; below white ; 

 bill and feet black: whole length 5-5 inches, wing 2-8, tail 2-2. Female 

 similar. 



Hab. Amazonia, Bolivia, and Argentine Republic. 

 The small black-and-white Tyrant is not uncommon in the marshes 

 and on the river-margins in the Plata district, its spring migration 



