The lifespan of a dobsonfly is three to five years, but the vast majority of its life is spent underwater — as a hellgrammite. Anglers know the hellgrammite as a centipede-looking critter found under ...

One of Montana's legendary trout flies, the girdle bug, was designed to imitate a large stonefly nymph, or "hellgrammite," as the local anglers on the Big Hole River call the big aquatic insects. Lost ...

I’m not cussing when I say my favorite stream bait for smallmouth bass is a hellgrammite. Hellgrammite is the legitimate name for a long, slender insect larva that by appearance looks like it could ...