World Around You: Hellgrammite lives underwater as larva for years before it becomes a fly

Anglers are familiar with hellgrammites, but did you know they live up to five years underwater?

Life Cycle of Dobsonfly Larvae - Dobsonfly larva/M-egaloptera

hellgrammite

Ohio Birds and Biodiversity: Nature: Hellgrammites, dobsonflies both fearful, fascinating

Decorah Envirothon - General aquatic insects

The Hellgrammite: You Won't Believe this Strange Insect Exists!

10 Dobsonfly Interesting Facts (And Their Larvae Too) - What's That Bug?

Hellgrammites The Dragonfly Woman

Eastern Dobsonfly Larva (Hellgrammite) Mountain Lake Biological Station, U.Va.

Mayfly Encyclopedia: 4200+ photos, life cycles, & fly fishing hatches

The Hellgrammite: You Won't Believe this Strange Insect Exists!

10 Dobsonfly Interesting Facts (And Their Larvae Too) - What's That Bug?

Fairfax County Environment - Meet the hellgrammite, the larval stage of the Dobson fly. This critter is a benthic macroinvertebrate; an insect that lives on the bottom (benthic) of a stream or

Simpsons (department Store) Wikipedia

Found this at work what is it : r/whatisthisbug