Order: Coleoptera

Aquatic Beetles

Many families of aquatic beetles have both their immature (larval) stage and adult stage in the water. If you click on the link to Beetle life stage to the right, you will be directed to a page that has photographs of the families along with close-up photos of their identifying characters.

The key for Colepotera can be found in Chapter 12 of the Guide to Aquatic Invertebrates of the Upper Midwest , pages 145-158. Once you have keyed out your insect, you can use the photographs on this website to verify your identification

Coleoptera