dobsonfly
Concise Oxford English Dictionary © 2008 Oxford University Press:
dobsonfly
▶noun (pl. dobsonflies) a large North American winged insect related to the alderflies, whose aquatic larva (the hellgrammite) is used as fishing bait. [Corydalis cornutus and other species.]
– origin early 20th cent.: of unknown origin.
'dobsonfly' also found in these Oxford entries:
