Family: Dytiscidae Adult

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.

Dytiscidae Adult

Dytiscidae Adult eyes Dytiscidae Adult coxae Dytiscidae Adult lateral

Coleoptera Adults

Dryopidae AdultDryopidae
Long-toed Water Beetles


DytiscidaeDytiscidae
Predaceous Diving Beetle


Elmidae adultElmidae
Riffle Beetles


Gyrinidae AdultGyrinidae
Whirligig Beetles


Haliplidae AdultHaliplidae
Crawling Water Beetles


HydrophilidaeHydrophilidae
Water Scavenger Beetles