60 BIRDS OF BRITISH GUIANA. 



tail is rounded and graduated and about three-fourths the 

 length of the wing. Coloration : male and female different. 



Key to the Species. 

 A. Abdomen white. 



a. Throat black M lonffipes 3 , Tp. 60. 



h. Throat ferruginous M. longipes $, p. 60. 



B! Abdomen chocolate-brown. 



c. Throat black M. ferrugineus <S , ^p. Gl. 



<?. Throat white M. ferrugineus $,p. 61. 



C. Abdomen blackish brown. 



e. Throat black M. atrothoraa; S , -p. 62. 



f. Throat wHte tinged with bright fawn- 

 colour II. atrothorax '^ , "p. 61. 



386. Myrmodems longipes. 



Swainson's Ant-Creeper. 



Drymophila longipes Swains. Zool. Journ. ii. p. 152, 1825 (Trinidad) ; 



Brabourne & Chubb, B. S. Amer. i. p. 209, no. 2105, 1912. 

 Myrmeciza longipes Sclater, Cat. B. Brit. Mus. xv. p. 278, 1890 



(Quonga). 



Adult male. Upper surface bright chestnut including the head, 

 back, wings, and tail ; the feathers on the upper back more or 

 less white towards the base and forming a somewhat concealed 

 patch ; inner webs of primary and secondary quills brown with 

 narrow rufous edgings ; forehead, sides of crown, and sides of the 

 nape grey, the feathers at the base of the forehead have black 

 shaft-lines; lower sides of face, throat, and fore-neck dark slate- 

 grey ; middle of abdomen inclining to white ; flanks fulvous- 

 brown ; under tail-coverts bright cinnamon ; under wing-coverts 

 whitish ; under surface of quills brown with rufous edgings ; 

 lower aspect of tail chestnut like the upper surface. 



Total length 140 mm., exposed culmen 16, wing 66, tail 53, 

 tarsus 28. 



Adult female. DifEers from the adult male in having the throat 

 whitish and fore-neck pale rufous, instead of black, the breast 

 whitish, instead of slate-grey, and a black spot on the subapical 

 portion of the upper wing-coverts. Wing 64 mm. 



The male and female described were collected in the Upper 

 Takutu Mountains in 1909. 



Breeding-season. Unknown in British Guiana. 



Mest, Unrecorded in British Guiana. 



