Eastern Salmonfly vs Blackburnia Hawaiian Ground Beetle
Side-by-side species comparison
| Attribute | Eastern Salmonfly | Blackburnia Hawaiian Ground Beetle |
|---|---|---|
| Scientific Name | Pteronarcys biloba | Blackburnia hawaiiensis |
| Order | Plecoptera | Coleoptera |
| Family | Pteronarcyidae | Carabidae |
| Size | 30-40 mm | 12-18 mm |
| Habitat | Rivers & Streams | Forests |
| Diet | Detritivores | Detritivores |
| Regions | North America | Oceania (Hawaii - Big Island) |
| Conservation | Least Concern | Vulnerable |
Eastern Salmonfly
A large dark stonefly of Appalachian streams that emerges in late spring. Nymphs process leaf litter and are important detritivores.
Did You Know?
Nymphs retain functional gills throughout development, unlike many stoneflies that lose them with age.
Blackburnia Hawaiian Ground Beetle
An endemic Hawaiian ground beetle found in montane forests on the Big Island of Hawaii. It is a nocturnal predator that hunts among leaf litter and under bark. The genus Blackburnia is endemic to Hawaii and represents one of the most spectacular insect radiations in the islands.
Did You Know?
The genus Blackburnia has diversified into over 130 species across the Hawaiian Islands, all evolved from a single colonizing ancestor.