Insects in the Order Trichoptera. The order name
means “hair wing” in Latin. There are 15 sub-orders with
over 5,000 species, and 1,200 living in various aquatic habitats throughout
North America. They are particularly abundant in most trout streams
throughout the world. Caddis flies are some of the most important members
of the macro invertebrate community that make up the food webs of most
rivers and streams. They undergo complete metamorphosis (egg - larva
- pupa - adult fly). Most are filter-feeders, while some are entomophagus
(i.e., they eat other insects).
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