Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. An insect (Corydalus cornutus) having four large, many-veined wings and in the male long, pincerlike mandibles.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. An insect of the subfamily Corydalinae whose males have long mandibles, found in the Americas and related most closely to the fishfly.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. large soft-bodied insect having long slender mandibles in the male; aquatic larvae often used as bait

Etymologies

Dobson +‎ fly (Wiktionary)

Examples

  • Hellgrammites, the pincered larvae of the dobsonfly, grow more than 3 inches long and are a favorite food of bass and big trout.

    More Fishing Tips

  • Sprouse will tie his own "Mike's Hellgrammite," which imitates the aquatic larva of the dobsonfly, as well as his version of the Clouser minnow.

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