Many anglers use a technique called fly fishing where they use specialized lures called flies to imitate the macroinvertebrates found in the stream (Figure 7). This explains why the name “caddisfly” comprises such a large group! They are found in lakes and rivers around the world. The riffles are short segments of the stream ... caddisflies to live because the riffles offer plenty of cobble gravel to hide in. Adults of a particular species emerge from the water at about the same time, sometimes forming clouds of insects over the water. Boiling Springs, PA Posts: 920: In addition to what Roger has stated, really the two insects are quite different other than wing number or shape, my speculation would be it has more to do with the type of metamorphosis the two orders go through.The caddisflies go through complete metamorphosis (egg, larva, pupa, adult) and mayflies go through incomplete metamorphosis, and most mayflies … In healthy streams, caddisflies are usually very common and their cases are found by the hundreds under rocks and logs. They are … Caddisflies make shells or casings for their pupal stage. Macroinvertebrates are also an important food source for many stream fish species, including trout. Trichoptera, or caddisflies, comprise the most diverse insect order whose members are exclusively aquatic. Riffles: An area of stream characterized by shallow depths with fast, turbulent water. Learn about the caddisfly (Trichoptera spp.) important because the y can provide depth and still water. Only aquatic Diptera outnumber them in species and ecological diversity. Watch videos of the live benthics to see how they move and view pictures of their different life stages. The type of materials used for caddisfly casings varies from species to species. Life cycle: Like moths, most caddisflies undergo complete metamorphosis — the immature stages look very different from the winged, adult stage, and the larvae enter a pupal stage before becoming adults. Larvae are important in nutrient cycling and energy flow in aquatic ecosystems. Caddisflies are an important insect to the fly fisherman who will use many variations of artificial flies to mimic caddisfly larvae and adults to effectively lure and catch trout. The caddisflies, or order Trichoptera, are a group of insects with aquatic larvae and terrestrial adults. Flies vs. Caddisflies Flies from the Diptera order have only one pair of wings, while caddisflies have two pair of wings. Caddisfly larvae are an important part of stream ecosystems, where they help control algae populations and provide food for fish and other creatures. As like in moths, caddisflies are active at night and attracted to light (representing important food source for … benthic macroinvertebrate by exploring the life cycle, feeding habitats, interesting facts and its role in the food chain. Caddisflies, or Trichoptera, are an order of aquatic insects known for the case and retreat-making behavior of the larval stage. There are approximately 14,500 described species, most of which can be divided into the suborders Integripalpia and Annulipalpia on the basis of the adult mouthparts. Caddisflies, inconspicuous brown to gray insects, are the ecologically diverse and important group of insects. Caddisflies are important insects in freshwater ecosystems, where they reproduce in streams, ponds, and lakes, serving as food for a wide variety of aquatic animals, especially fish. 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