5^ BIRDS OF BRITISH GUIANA. 



381. Myrmornis torquata torquata*. 



Cayenne Ant-Thrush. 



Formicarius torquatus Boddaert, Tabl. PL Enl. p. ^3, 1783 (Cayenne). 

 Ithopoterpe torquata Salvin, Ibis, 1885, p. 429 (Bartica Grove, Caina- 



cusa) ; Sclater, Cat. B. Brit. Mus. xv. p. 298, 1890 (Demerai-a) ; 



Beebe, Our Search for a Wilderness, p. 302, 1910 (Aremu River). 



Woodcock Ant-bird (Beebe). 



Adult male. Head dark chestnut-brown with slightly paler 

 shaft-streaks to the feathers ; back greyish brown, the feathgrs 

 broadly fringed with chestnut, some of the feathers have white 

 bases with the terminal portion black, while others have an ovate 

 black subterminal spot ; rump, upper tail-coverts, and tail chest- 

 nut ; upper wing-coverts black fringed with white or smoky-white 

 and sometimes greyish brown on the basal portion ; an oblique 

 band of smoky-white across the outer webs of the primary-quills, 

 tips of secondary quills bronze-grey, a large patch of white on 

 the inner webs of the quills, which commences on the third outer 

 primary, increasing in extent towards the inner secondaries ; 

 lores, a line over the eye, and hinder face speckled with black and 

 white ; throat and fore-neck black, the feathers on the outer 

 margin of the black throat-spot tipped with white ; breast, sides 

 of the body, and abdomen dark ash-grey, somewhat paler on 

 middle of the abdomen ; lower flanks rust-brown ; under tail- 

 coverts pale chestnut; under wing-coverts white barred with 

 dark brown ; quills below pale brown with a white patch. 



Total length 140 mm., exposed culmen 22^ wing 93, tail 36, 

 tarsus 23. 



The male from which the description is taken was collected on 

 the Ituribisi River. 



Adult female. Differs from the adult male in having a chestnut 

 throat-patch instead of black as in the male. Wing 93 mm. 

 The adult female described was collected at Bartica. 

 Nestling. Covered for the most part with down, which is 

 chestnut-brown in colour. The wing-feathers, which are more or 

 less developed, are similar in colour to those of the adult. This 

 specimen was collected on the Kamakabra River. 



* This .species was tinf ortmiately omitted from Brabourne & Chubb's 

 ' Biids of South America,' vol. i. 



