Water beetles are beetles who live in water. Water beetles are black, brown, or greenish. They are 0.08 to 1.57 inches long. There are 2,000 species of water beetles. These include whirligig beetles (Gyrinidae), Haliplidae, Noteridae, Amphizoidae, Dytiscidae, and Hydroscaphidae.
- Epler, J. H. 1996. Identification manual for the water beetles of Florida (Coleoptera: Dryopidae, Dytiscidae, Elmidae, Gyrinidae, Haliplidae, Hydraenidae, Hydrophilidae, Noteridae, Psephenidae, Ptilodactylidae, Scirtidae). (PDF, 9.0 MB)