52 BIRDS OF BRITISH GUIANA'. 



381. Myrmornis torquata torctuata*. 



Cayenne Ant-Thrush. 



Formicarius torquatus Boddaert, Tabl. PL Enl. p. 43, 1783 (Cayenne). 

 Shopoterpe torquata Salvin, Ibis, 1885, p. 429 (Bartica Grove, Cama- 



cusa) ; Sclater, Cat. B. Brit. Mus. xv. p. 298, 1890 (Demerara) ; 



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



Woodcock Ant-bird (Beebe). 



Adult male. Head dark chestnut-brown with slightly paler 

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

 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 J 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. DifEers from the adalt 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 unfortunately omitted from Brabom-ne & Chubb's 

 ' Eii'ds of South America,' vol. i. 



