Predaceous Diving Beetle (Family Dytiscidae)

Predaceous Diving Beetles (PDB) are in the largest family of aquatic beetles. Typically, they live in the shallow, still waters of lakes and ponds or in the pool areas of streams. Although some are pretty small, our typical PDBs are an inch to an inch-and-a-half long, oval, with slender antennae and with dark with buffy/green edging on the elytra. Eggs are laid on/in plants above the waterline in early spring. When they hatch, the larvae drop into the water. Mature larvae crawl out of the water to pupate in damp chambers on the shoreline. They emerge as adults to reenter the water