Eastern Salmonfly vs Eastern Tiger Swallowtail
Side-by-side species comparison
| Attribute | Eastern Salmonfly | Eastern Tiger Swallowtail |
|---|---|---|
| Scientific Name | Pteronarcys biloba | Papilio glaucus |
| Order | Plecoptera | Lepidoptera |
| Family | Pteronarcyidae | Papilionidae |
| Size | 30-40 mm | 79-140 mm wingspan |
| Habitat | Rivers & Streams | Rivers & Streams |
| Diet | Detritivores | Nectar Feeders |
| Regions | North America | North America |
| Conservation | Least Concern | Least Concern |
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.
Eastern Tiger Swallowtail
A large yellow butterfly with bold black tiger stripes and blue and orange markings on the hindwing margins. Females can occur in a dark morph mimicking the toxic pipevine swallowtail.
Did You Know?
The caterpillar has large false eyespots and can evert an orange forked gland called an osmeterium that emits a foul smell to deter predators.