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caddis fly |
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caddis flyInsect of the order Trichoptera. Adults are generally dull brown, mothlike, with wings covered in tiny hairs. Mouthparts are poorly developed, and many caddis flies do not feed as adults. They are usually found near water. The larvae are aquatic, and many live in cases, open at both ends, which they make out of sand or plant remains. Some species make silk nets among aquatic vegetation to help trap food. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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They now conduct an annual census of large invertebrates such as the caddis fly, whose populations can be a gauge of stream health. At Oregon State University (OSU) in Corvallis, Katherine to Johnson and her colleagues administered esfenvalerate to aquatic nymphs of the caddis fly (Brachycentrus americanus)--an insect eaten by many fish. As their bodies began changing, Caddis and her husband discussed sexuality with them. |
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