32 



BIRDS OF BRITISH GUIANA. 



Genns MYRMOPHILA Cab. & Hein. 



Mi/rmnphilo Cabanis & Heine, Mus. Hein. ii. p. 12, 1859. Type 

 M. minor (Salvadon). 



Fig. 1(J. — MyrmophiJa minor. 



In tbis genus tbe male bas a uniform bbick tbroat. Tbe bill is 

 sbort and slender. The wing is rounded, the fiftli primary longest, 

 ibe fourth about equal to the sixth in length, the third between 

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

 more than half tbe length of the wing. The sexes differ in colour 

 of plumage. 



Key to tlie Species. 



A. Larger, wing more than 60 mm. ; uj^per wing- 



coverts black tipped with white, in contrast 



to tbe rest of tbe upper surface M. vavasoiiri, p. 32. 



B. Smaller, wing le.ss than 60 mm. ; upper wing- 



coverts uniform with tbe rest of tbe upper 



svu-face M. helini , ]). 3f3. 



368. Myrmophila vavasouri. 

 Vavasour's Long-winged Ant-bird. 



Myrmoflierula loncjipennis (nee Pelz.) Salvin, Ibis, 1885, p. 426 

 (Bartica Grove, Camacusa) ; Sclater, Cat. B. Brit. Mus. xv. p. 211, 

 1890 ; Brabom-ne & Chubb, B. S. Amer. i. p. 198, no. 1988, 1912. 



Mynnophila vavasouri Cbubb, Bull. Brit. Orn. Club, xxxviii. p. 83, 

 1918. 



Adult male. General colour above and below slate-blue, including 



