Conservation Corner: Dobson Flies and Hellgrammites – Potomac

The Northeast's Most Alarming Insect - - The Adirondack Almanack

Conservation Corner: Dobson Flies and Hellgrammites – Potomac Valley Fly Fishers

Pocono Environmental Education Center - This fearsome beast is a male eastern dobsonfly, Corydalus cornutus. Dobsonflies start their lives in the water, as a macroinvertebrate known as a hellgrammite, a six-legged worm

Brazos Bend State Park - Pond Life Fishflies and Dobsonflies

Hellgrammite Missouri Department of Conservation

Dobsonfly Defense Mechanism: Explained - What's That Bug?

Eastern Dobsonfly Missouri Department of Conservation

An Eastern Dobsonfly from Southwestern Pennsylvania - Bugs In The News

Maryland Biodiversity Project - Eastern Dobsonfly (Corydalus cornutus)

Eastern Dobsonfly Missouri Department of Conservation

Eastern Dobsonfly: All You Need To Know - What's That Bug?

How a cool creepy insect warms up: Eastern Dobsonfly, Corydalus cornutus — Bug of the Week

Insect Identification