Hellgrammite vs Tanypod Predatory Midge

Side-by-side species comparison

Attribute Hellgrammite Tanypod Predatory Midge
Scientific Name Nigronia serricornis Tanypus punctipennis
Order Megaloptera Diptera
Family Corydalidae Chironomidae
Size 40-60 mm wingspan 4-7 mm
Habitat Rivers & Streams Ponds & Lakes
Diet Predators Predators
Regions Eastern North America North America
Conservation Least Concern Least Concern

Hellgrammite

A dark-colored dobsonfly whose larvae, known as hellgrammites, are prized as fishing bait. Adults are smaller than Corydalus and have serrated antennae.

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Did You Know?

Hellgrammite larvae are so effective as fishing bait that they are commercially collected and sold to anglers.

Tanypod Predatory Midge

A predatory midge whose larvae hunt other small invertebrates in soft sediments. Adults have distinctively spotted wings.

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Did You Know?

Unlike most chironomids, Tanypodinae larvae are active predators with retractable head capsules for striking at prey.