Family: Elmidae Adults

Riffle Beetles

These photos supplement pages 145-158 of the Guide to Aquatic Invertebrates of the Upper Midwest. Information on the biology of Elimidae can be found on page 154. Click to see the Elmidae larvae page.

Elmidae adult

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