Definition of caddisfly in English:


(also caddis fly)

Pronunciation /ˈkadəsˌflī/ /ˈkædəsˌflaɪ/

Translate caddisfly into Spanish


  • A small, mothlike insect with an aquatic larva that typically builds a protective, portable case of sticks, stones, and other particles. Some kinds have been traditionally used as bait by fishermen.

    Order Trichoptera: several families

    ‘Every day the sun sets behind blurred clouds of stonefly, caddis, midge or mayfly dancing against the horizon.’
    • ‘The key to the transformation is that the oxygen has increased the number of invertebrate the fish feed on from about five to 30 including freshwater shrimp, water louse and a caddis which only thrives in pristine waters.’
    • ‘It included specimens of fourteen insect orders, with major holdings of New Zealand moths, butterflies, beetles, stoners, caddis and bugs.’
    • ‘Once you've collected a hundred or so caddises then you've got enough to go fishing with - and you can often get ten caddis grubs off a single stone.’
    • ‘The children's trays began to fill with mayfly nymphs, aquatic sow bugs, and the larvae of blackflies, caddis flies, and bloodred midges.’


Mid 17th century of unknown origin.