390 Professor E. B. Poulton on 
insufficient, but such as it is suggests that Diptera and 
minute Hymenoptera form the chief prey of this sub- 
family. 
Summing up, we may conclude that with comparatively 
few exceptions the Hmpidg# are the foes of their own 
group,—the Diptera. In the vast preponderance of cap- 
tures within the limits of a single Order, they are sharply 
contrasted with the Asilidz. 
