When fully grown the Dobsonfly is also sometimes know by the name Luciferfly.
It starts its life as larvae living in streams, creeks, and rivers. At this stage of its life it's known as a Hellgrammite. Once its starts maturing it will come out of the water and grow wings as an adult. This is when it's referred to as a Dobsonfly.
The males have very large mandible jaws that look very fierce.
While the females have much smaller mandibles.
The bite from a female can be more painful than the male and will sometimes bite if felt threatened.