42 BIRDS OF BRITISH GUIANA. 



fifth, and sixth primaries longest, the third about equal to the 

 seventh. The tail, which is nearly equal to the wing in length, is 

 rounded and graduated, the two middle feathers longest, the 

 outermost feather on each side only slightly more than half the 

 length of the middle ones. The feet are small and slender; the 

 tarsus exceeds the length of the exposed culmen by about one- 

 fourth. Coloration : male and female similar. 



375. Terenura spodioptila. 



Ash-vented Ant-Wken. 



Terenura spodioptila Sclater & Salvin, Ibis, 1881, p. 270, pi. ix. fig. 1 

 (Bartica Grove) ; Salvin, Ibis, 1885, p. 426 (Camacusa) ; Sclater, 

 Cat. B. Brit. Mus. xv. p. 258, 1890 (Bartica Grove, Camacusa) ; 

 Brabourne & Chubb, B. S. Amer. i. p. 203, no. 2039, 1912. 



Adult male. Grown of the head and nape blackish brown ; 

 back, scapulars, rump, and short upper tail-coverts chestnut ; 

 wings, long upper tail-coverts, and tail greyish brown ; median 

 and upper wing-coverts tipped with white, which forms a double 

 wing-bar ; lores, a line over the eye and along the sides of the- 

 crown, and sides of the face ash-grey li,ke the entire under surface, 

 paler on the throat and inclining to white on the axillaries and 

 under wing-coverts. 



Total length 95 mm., exposed culmen 13, wing 49, tail 37, 

 tarsus 15. 



Adult female. Differs from the adult male in having the crown 

 of the head and nape ochreous, including the lores and sides of 

 the crown, and the throat and fore-neck tipped with isabelline. 

 Wing 46 mm. 



This species is not represented in the McGonnell collection, and 

 the descriptions are taken from material in the British Museum. 

 The male, which is the type of the species, was collected by the 

 late Henry Wbitely at Bartica in June 1880 and the female at 

 Kamakusa in March 1882. 



Breeding-season. Unknown in British Guiana. 



Nest. Unrecorded in British Gruiana. 



Eggs. Undescribed from British Guiana. 



Range in British Guiana. Bartica, Kamakusa (Wliitely). 



EiXtralimital Range, Surinam ( Penard) . 



Habits. Unrecorded in British Guiana. 



