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Hellgrammite (larval form of the dobsonfly) found in a Tennessee stream Hellgrammites are popular among anglers as bait due to their large size, endurance, and ferocious temperament. [ 19 ] Smallmouth bass , in particular, are very attracted to hellgrammites as bait, due to the insects' active movement in the water.
The larger hellgrammites are fearsome predators with well-developed jaws. After one to three years and when ready to pupate, they emerge from the water and travel up to fifteen metres looking for a suitable location under a rock, log or leaf litter. [11] There may be a mass emergence of hellgrammites within a few days of each other. [12]
Nigronia serricornis has many common names including hellgrammites or fishflies or saw-combed fishflies. The genus Nigronia has one other North American member N. fasciatus and South American which lives in much of the same territory and is quite similar in all regards. [1] They are holometabolous insects with an aquatic larval stage. [2]
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Their aquatic larvae are used as fish bait and are called hellgrammites. The larvae are aquatic, active, armed with strong sharp mandibles, and breathe by means of abdominal branchial filaments. When full sized — which can take several years — they leave the water and spend a quiescent pupal stage on the land, in chambers dug under stones ...
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