He found a bee (Andrena) which had a sack-like parasite protruding from its abdomen which was identified by Dr. E. C. VanDyke as a female Stylops (order Strepsiptera).
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In 1946 the Department of Entomology established a research oriented insect collection and Richard Bohart contributed research material in the Diptera, Hymenoptera, and Strepsiptera.
No other group of insects possesses similar structures (in place of hind wings—insects in the order Strepsiptera have convergently-evolved halteres in place of fore wings).