The Great Diving Beetle is a large, streamlined aquatic predator that swims with powerful oar-like hind legs and can subdue prey as large as small tadpoles and fish. It carries an air bubble under its elytra for diving and must surface periodically to replenish oxygen. Adults fly at night between ponds and are attracted to lights.
Habitat
Ponds, lakes, and slow-moving freshwater
Diet
Adults and larvae: aquatic invertebrates, tadpoles, and small fish
How common
Uncommon
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