Predaceous Diving Beetles
These photos supplement pages 145-158 of the Guide to Aquatic Invertebrates of the Upper Midwest. Information on the biology of Dytiscidae can be found on page 152. Some Dytiscidae have yellow stripes as seen on the right, but others do not. Dytiscidae adults can get confused with Gyrinidae and Hydrophilidae adults. Click to see Dytiscidae larvae.