Insect Home

Insect Orders

Ephemeroptera: Mayflies

Odonata: Dragonflies

Hemiptera: True Bugs

Trichoptera: Caddisflies

Lepidoptera: Moths and Butterflies

Coleoptera: Beetles

Diptera: Flies

Index

Glossary

Links

Environmental Interpretive Center

Key to the Aquatic Orders of Class Insecta

a.

b.

c.

d.

e.

f.

g.

h.

i.

j.

1a. Surrounds its body with a case of plant material (Figures a. and b.)

See 2

1b. Does not surround its body with plant material

See 3

 

 

2a. Case constructed of two pieces of leaves cut in a circular shape (Figure a.)

Lepidoptera

2b. Case constructed of rolled pieces of leaves ( Figure b.)

Trichoptera

 

 

3a. Wings or wing pads present (Figures c., d., and e.)

See 4

3b. Wings or wing pads absent (Figure f.)

See 8

 

 

4a. Wings fully developed (Figures c. and d.)

See 5

4b. Wings developing as fixed wing pads (Figure e.)

See 6

 

 

5a. Fore wings modified into a hard shell called an Elytra (Figure g.); Chewing mouthparts (Figure h.)

Coleoptera

5b. Fore wings are only partially hardened creating an X-like pattern; called a hemelytron (Figure f.); Piercing mouth parts (Figure j.)

Hemiptera