178 BIRDS OF BRITISH GUIANA. 



Myiopatis semifmea Sclater, Cat. B. Brit. Mus. xiv. p. 123 (part), 



1888 (Bartica Grove). 

 Phmomyias ineompta Brabourne & Chubb, B. S. Amer. i. p. 286,' 



no. 2918, 1912. 



Adult. General colour of the upper parts dusky olive-brown 

 somewhat darker on the top o£ the head ; median and greater 

 upper wing-coverts brown broadly tipped with buff ; bastard-wing 

 and primary-coverts uniform brown ; flight-quills dark brown 

 with pale margins to the outer webs of the inner secondaries 

 which become very narrow on the primary-quills, the inner 

 webs have also pale margins ; tail pale brown slightly paler 

 at the tips of the feathers ; a slightly indicated pale streak 

 above the eye ; ear-coverts similar to the crown ; throat pale ash- 

 grey with a tinge of yellow ; cheeks and sides of neck dusky 

 olive-yellow becoming paler on the middle of the breast and sides of 

 the body ; abdomen, under tail-coverts, axillaries, and under wing- 

 coverts sulphur-yellow, paler on the last ; under surface of quills 

 brown with pale edgings ; lower aspect of tail pale greyish brown. 



Total length 110 mm., exposed culmen 11, wing 62, tail 53, 

 tarsus 19. 



The specimen described was collected on the Bonasika River in 

 1912. 



Breeding-season. Unknown in British Guiana. 



Nest. Unrecorded in British Guiana. 



Eggs. Undescribed from British Guiana. 



Range in British Guiana. Upper Takutu Mountains, Bonasika 

 River, Abary River {McConnell collection); Bartica [Whitely). 



Extralimital Range. Venezuela, Colombia. 



Habits. Unrecorded in British Guiana. 



Genus ORNITHION Hartl. 

 OrnitMon Hartlaub, J. f. O. 1853, p. 35. Type O. inerme Hartl. 



Fig. V6. — OrnitMon inerme. 

 Thei members of this genus are also birds of small size. The 



