|An alphabetical listing of the insect Orders considered in this key.|
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 Fishflies and Dobsonflies. Another group with aquatic larvae and terrestrial adults. Not as commonly collected in North Dakota as some other groups.
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.