The caddis fly resembles a small moth, with hairy wings instead of scaly wings like their distant cousins, moths and butterflies. Found in fast-moving streams plays an important ecological role caddisfly by eating algae and provides a food source for fish and other creatures. The determination of the body parts of a caddis fly depending on which is the four life stages of metamorphosis in caddisfly in examining it.
The caddisfly starts life as a larva, with slender bodies, which may be mistaken for caterpillars. During the larval stage, the caddisfly has gills his belly, so they breathe under water, where it lives in this phase of his life. Body parts in this phase include three pairs of legs and a segmented abdomen, with two hooks "prolegs" on the last segment. Some larvae a protective shell to live in by the shelter.
A mature larva of the caddis fly is created in a cocoon in a hard shell, making the caddisfly in the second part of its life cycle, the pupa stage. The looming creature, known as pharate adults, is enclosed in a temporary integument, a skin-like layer and has lined long, medium legs with hair. At this stage, wings and antennae and formed his body is segmented. The paddle-like legs allow for efficient swimming, and the wings and antennae are usually folded back along the belly. Dolls are creamy shades of green, orange, brown or gray, their thorax and wings folded often appear much darker.
The mature adult caddis fly looks most like a moth, with two pairs of hairy wings that sit up like a tent, two very long antennae and six slender, hairy legs. The extra-long antennae of a caddisfly are an easy way to distinguish it from a moth that looks similar in color and shape.
Adult caddisflies can be hard to find in the wild because they are only for a few weeks each year. They are usually under rocks and logs near streams, rivers and lakes in the spring and summer. The coloration of the adult is similar to the shades of green, orange, cream, brown or gray pupation.