Hellgrammite vs Ewingi Japygid
Side-by-side species comparison
| Attribute | Hellgrammite | Ewingi Japygid |
|---|---|---|
| Scientific Name | Nigronia serricornis | Catajapyx ewing |
| Order | Megaloptera | Diplura |
| Family | Corydalidae | Japygidae |
| Size | 40-60 mm wingspan | 5-10 mm |
| Habitat | Rivers & Streams | Underground |
| Diet | Predators | Predators |
| Regions | Eastern North America | United States |
| 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.
Did You Know?
Hellgrammite larvae are so effective as fishing bait that they are commercially collected and sold to anglers.
Ewingi Japygid
A predatory dipluran found in soils of the southeastern United States. It uses its forceps-like cerci to capture small soil invertebrates.
Did You Know?
It uses its pincer-like cerci to grab prey, much like an earwig.