Common Alderfly vs Ewingi Japygid
Side-by-side species comparison
| Attribute | Common Alderfly | Ewingi Japygid |
|---|---|---|
| Scientific Name | Sialis lutaria | Catajapyx ewing |
| Order | Megaloptera | Diplura |
| Family | Sialidae | Japygidae |
| Size | 12-16 mm | 5-10 mm |
| Habitat | Ponds & Lakes | Underground |
| Diet | Predators | Predators |
| Regions | Europe, Asia | United States |
| Conservation | Least Concern | Least Concern |
Common Alderfly
A dark smoky-winged insect commonly found near still or slow-moving waters across Europe. Its aquatic larvae are predators in lake and pond sediments.
Did You Know?
Alderfly females lay hundreds of eggs in neat rows on vegetation overhanging water, and the larvae drop into the water upon hatching.
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.