Definition of dobsonfly
: a winged insect (family Corydalidae) that has very long slender mandibles in the male and a large carnivorous aquatic larva and that is now usually considered a neuropteran — compare hellgrammite
Origin and Etymology of dobsonfly
First Known Use: circa 1904
Learn More about dobsonfly
Britannica.com: Encyclopedia article about dobsonfly
Seen and Heard
What made you want to look up dobsonfly? Please tell us where you read or heard it (including the quote, if possible).