caddisfly

or cad·dice·fly

[kad-is-flahy]
noun, plural cad·dis·flies.
  1. any of numerous aquatic insects constituting the order Trichoptera, having two pairs of membranous, often hairy wings and superficially resembling moths.
Compare caddisworm.

Origin of caddisfly

First recorded in 1780–90; see origin at caddisworm, fly2
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for caddisfly

Historical Examples of caddisfly