MYRMOBEKUS. — HYPOCNEMIS. 63' 



Makauria Eiverj Abary River, Arawai Eiver {McConnell collec- 

 tion) ; Merum^ Mountains ( Whitely). 



E.vtralimital Range. Cayenne (Boddaert), North Brazil, Vene- 

 zuela, Colombia. 



Habits. Unrecorded in British Guiana. 



Genus HYPOCNEMIS Gab. 



Eypocnemis Cabanis, Arch, fiir Naturg. 1847, i. p. 212. Type 

 -HT. cantator (Bodd.). 



Fig. 29. — Hypocnemis cantator. 



The species on -which this genus was founded is a somewhat 

 small bird. The bill is hooked at the tip, slender in form, and 

 about two-thirds the length of the tarsus. It possesses short but 

 numerous rictal bristles. The wing is rounded, the fourth and 

 fifth primaries longest and equal, the third intermediate between 

 the seventh and eighth. The tail, which is proportionately long, 

 ia rounded at the tip and graduated, the outer feather on each 

 side about three-fourths the length of the middle ones. Colora- 

 tion : male and female similar. 



389. Hypocnemis cantator. 



"Warbling Ant-Ckebpmr, 



Formicarius cantator Bodd. Tabl. PI. Enl. p. 44, 1783 (Cayenne)* 

 Mypocnemis tintinnabwlata Cab. in Schomb. Keis. Guian. iii. p. 684, 



1848. 

 Hypocnemis cantator Salvin, Ibis, 1885, p. 428 (Camacusa, Bartica 



Grove) ; Sclater, Cat. B. Brit. Mus. xv. p. 285, 1890 (Camacusa, 



Bartica Grove) ; Braboume & Chubb, B. S. Amer. i. p. 211, no; 



2120, 1912. 



Adult male. Entire head and nape black with white tips to 

 many of the feathers which form three irregular lines, a narrow 

 one above each eye which spreads out on the sides of -the neck, and 



