48 BIRDS OF BRITISH GUIANA. 



379. Manikup albifrons. 



White-fronted Ant-catcheb. 



Pipra allifrons Linn. Syst. Nat. 12th ed. i. p. 339, 1766 (Guiana: ex 

 Edwards, pi. 344). 



Pithys albifrons Cab. in Schomb. Eeis. Guian. iii. p. 685, 1848 ; Salvin, 

 Ibis, 1885, p. 428 (Bartica Grove, Camacusa, Meruni6 Mts., 

 Eoraima 3500 ft.) ; Sclater, Cat. B. Brit. Mus. xv. p. 294, 1890 

 (Eoraima, Camacusa, Merum6 Mts., Bartica Grove) ; Brabourne & 

 Chubb, B. S. Amer. i. p. 206, no. 2068, 1912 ; Beebe, Trop. Wild 

 Life in British Guiana, p. 132, Jan. 1917 (Bartica). 



Manihup albifrons Chubb, Bull. Brit. Orn. Club, xxxix, p. 42, Jan. 3, 

 1919. 



Adult male. Back and wings dark slate-colour, inner webs of 

 primary and secondary quills dark brown ; upper tail-coverts, a 

 nuchal collar, ear-coverts, breast, abdomen, under tail-coverts, 

 axillaries, under wing-coverts, and tail, both above and below, 

 deep chestnut; crown of head, fore part oE face, and the 

 feathers dividing the white chin and chestnut breast black ; a 

 narrow streak behind the eye, fore part of head and throat white, 

 the feathers of the two latter much elongated and lanceolate ; 

 greater under wing-coverts and quill-lining pale brown. 



Total length 122 mm., exposed culmen 18, wing 72, tail 38, 

 tarsus 24. 



The bird from which the description is taken was collected on 

 the Ituribisi River in August 1908. 



Adult female. Similar to the adult male. Wing 67 mm. 



Young birds are distinguished by the dusky appearance above 

 and below, the absence of the chestnut collar on the hind-neck, 

 the white streak behind the eye, the white feathers on the fore 

 part of the head, and the white on the throat. The specimen 

 on which these remarks are based was collected on the Ituribisi 

 River in October 1908. There are two other immature examples 

 from the Anarica River, rather more advanced, which show the 

 appearance of white on the middle of the throat. 



Breeding-season. Unknown in British Guiana. 



Nest. Unrecorded in British Gruiana. 



Eggs. Undescribed from British Guiana. 



Range in British Guiana. Ituribisi River, Supenaam River, 

 Anarica River (McConnell collection); Mount Roraima, Kamakusa, 

 Merum6 Mountains, Bartica { Whitely). 



