Hobbies And Interests
Quick Identification Characteristic
One of the easiest ways to spot a caddisfly is by its wings. Unlike moths -- which have a relatively horizontal sitting position for the wings -- caddisfly wings sit on their body at a much more angled position, resembling the roof of a house. The pre-adult caddisfly lacks wings and lives under the water.
Wing Observation Details
Caddisfly wings are relatively bland in color, which is the main reason the insect is commonly misidentified as a moth. The wings usually span the whole body. However, some females have shorter wings that prevent them from flying. Wings come in sets of four and are membranous. The two hind wings will be slightly smaller than the two front wings. The wings consist of dense hairs, unlike the scaly appearance of moth wings.
Other Identification Characteristics
All caddisfly species have very long antennae, which are usually as long as the body, or sometimes a little shorter. The body can vary in size, but usually grows to a length of 1-1/2 inches.
Life Cycle and Habitat
Caddisflies live near bodies of water. Females usually lay hundreds of eggs in a large mass. Caddisfly development lasts several months and goes through four stages, culminating with the insect developing its wings. Caddisflies live mostly as aquatic bugs. The lifespan of an adult is so short (often just a couple days at the most), it does not even feed. Larval stages, on the other hand, feed on plants, algae and other insects underwater.