The Beetles. This group has both aquatic larval and adults. A very diverse group commonly collected in the state.

The Springtails. Most members of this group are soil dwelling insects although a few groups are aquatic. They are generally very small in size and may be overlooked in many cases.

The flies and mosquitoes. This is another large and diverse group, although only the larvae are usually aquatic.

The Mayflies. These insects spend most of their lifecycle as aquatic larvae with the adults living only a few days. Their larvae are commonly collected.

The True Bugs. A group of insects with their mouth modified into a piercing sucking tube. While the majority of insects in this group are terrestrial, there are quite a few types that have both aquatic larvae and adults.

The Butterflies and Moths. A few members of this group have aquatic larvae. Not commonly collected however.

The Fishflies and Dobsonflies. Another group with aquatic larvae and terrestrial adults. Not as commonly collected in North Dakota as some other groups.

The Lacewings and antlions. One genus in this group has aquatic larvae. Rarely collected in North Dakota.

The Dragonflies and Damselflies. Aquatic larvae and terrestrial adults. Both larvae and adults are efficient predators.

The Stoneflies. This group has aquatic larvae and terrestrial adults. Not as common as many other groups in North Dakota.

The Caddisflies. This group has aquatic larvae and pupae with the adults being terrestrial. Commonly known as the case makers, the larvae often make a retreat in which they live. Several common types make only a net like retreat. Commonly collected in North Dakota.