North American Alderfly vs Summer Fishfly
Side-by-side species comparison
| Attribute | North American Alderfly | Summer Fishfly |
|---|---|---|
| Scientific Name | Sialis infumata | Chauliodes pectinicornis |
| Order | Megaloptera | Megaloptera |
| Family | Sialidae | Corydalidae |
| Size | 15-20 mm wingspan | 25-40 mm |
| Habitat | Rivers & Streams | Rivers & Streams |
| Diet | Predators | Omnivores |
| Regions | Eastern North America | North America |
| Conservation | Least Concern | Least Concern |
North American Alderfly
A small, dark-winged alderfly common near ponds and slow streams across eastern North America. Adults are clumsy fliers often found resting on streamside plants.
Did You Know?
Larvae spend one to two years burrowing in pond mud before emerging for a brief adult life of just days.
Summer Fishfly
A medium-sized fishfly emerging in summer with distinctive dark-veined wings and feathery antennae. Larvae develop in muddy stream bottoms.
Did You Know?
Unlike dobsonfly larvae that prefer fast-flowing water, summer fishfly larvae thrive in slow muddy pools and swamps.