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also caddis fly  (kăd′ĭs-flī′)
Any of numerous insects of the order Trichoptera, having long antennae and four wings covered with short hairs, and usually found near lakes and streams. Also called trichopteran.

[Perhaps from obsolete cad (influenced by caddis), variant of cod (from the tube in which the larva lives).]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(Animals) any small mothlike insect of the order Trichoptera, having two pairs of hairy wings and aquatic larvae (caddisworms)
[C17: of unknown origin]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


or cad•dice•fly

(ˈkæd ɪsˌflaɪ)

n., pl. -flies.
any of numerous aquatic insects constituting the order Trichoptera, having two pairs of membranous, often hairy wings and superficially resembling moths.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
References in periodicals archive ?
There are a wide variety of known embryo predators, including crayfish (Johnson and others 2003), diving beetles (Magnusson and Hero 1991; Johnson and others 2003), caddisfly larvae (Richter 2000), wasps (Warkentin 2000), fish (Ortubay and others 2006), tadpoles (Magnusson and Hero 1991; Petranka and Thomas 1995), snakes (Warkentin 1995), water molds (Blaustein and others 1994; Gomez-Mestre and others 2006), and leeches (Laurila and others 2002).
Caddisfly (Trichoptera) larvae had not previously been reported in the diet of black carp but had the highest incidence of any insect group (15.6%).
Until now, this research had been species- and/ or geography-specific--a study of caddisfly declines in Croatia, for instance, or carabid beedes in New Zealand.
Photos of it, swimming inside one of the green plants were circulated online. Though the man was not sure about what the creature was, some suggested it to be caddisfly.
The caddisfly, a globally common aquatic insect, was among those tested in this study.
"I suspect it's because they're gorging on mayfly nymphs and caddisfly larvae.
She even tried her hand at pond dipping, catching a host of underwater bugs including caddisfly larvae, as well as tadpoles, stickleback fish and a variety of water snails.
Differentiation and speciation in mountain streams: a case study in the caddisfly Rhyacophila aquitanica (Trichoptera).
Riek, "The marine caddisfly family chathamiidae (Trichoptera)," Australian Journal of Entomology, vol.