Key to the Species. 
A. Larger ; wing over 200 mm ; uniform above and 
below . . . . . . . . . . . . E. castaneoventris, p. 200. 
B. Smaller ; wing under 160 mm. : 
a'. Uniform above ; no pectoral band . . E. robinsoni, p. 203. 
h' . Mottled above ; ochreous pectoral band .. E. australis^ p. 193. 
192 
