Snowborn Stonefly vs Hooked Stonefly
Side-by-side species comparison
| Attribute | Snowborn Stonefly | Hooked Stonefly |
|---|---|---|
| Scientific Name | Capnia atra | Agnetina capitata |
| Order | Plecoptera | Plecoptera |
| Family | Capniidae | Perlidae |
| Size | 4-7 mm | 20-30 mm |
| Habitat | Rivers & Streams | Rivers & Streams |
| Diet | Detritivores | Predators |
| Regions | North America | Eastern North America |
| Conservation | Least Concern | Least Concern |
Snowborn Stonefly
A tiny black stonefly that emerges during the coldest months in northern North America. Adults are frequently observed walking on snow.
Did You Know?
It is active at temperatures near freezing, when virtually all other insects are dormant.
Hooked Stonefly
A large, patterned stonefly of eastern North American rivers with distinctive hooked anal gills. Nymphs are active nocturnal predators under cobbles.
Did You Know?
Its nymphs are nocturnal, hiding under rocks by day and actively hunting at night.