dobsonfly

 
Pronunciation: /ˈdɒbs(ə)nflʌɪ/

noun (plural dobsonflies)

  • a large grey North American winged insect related to the alderflies. Its predatory aquatic larva (the hellgrammite) is often used as fishing bait.
    • Family Corydalidae, order Neuroptera: several genera and species, in particular Corydalis cornutus

Origin:

early 20th century: of unknown origin