1933 ] 
Unusual Prey of Bembix 
59 
had shifted their predatism to the very insects which were 
responsible for the dearth of Diptera. 
Another Australian Bembix is also known to provide its 
young with unusual prey. Mr. A. E. Burns, a young hy- 
menopterist of Melbourne, Victoria, informed the senior 
author that in Queensland he had taken a Bembix palmata 
F. Smith in the act of provisioning its burrow with a female 
nymph of a locustid. 
Lest the reader conclude that all the Australian Bembix 
are aberrant in their choice of prey, it should be mentioned 
that among the insects caught by the Harvard Expedition 
is a Bembix furcata Erichson with a fairly large tabanid. 
These specimens were collected by Dr. P. J. Darlington, Jr., 
at Blackheath in the Blue Mountains, in January 1932. 
