Gray Silverfish vs Primitive Silverfish
Side-by-side species comparison
| Attribute | Gray Silverfish | Primitive Silverfish |
|---|---|---|
| Scientific Name | Ctenolepisma longicaudatum | Tricholepidion gertschi |
| Order | Zygentoma | Zygentoma |
| Family | Lepismatidae | Lepidotrichidae |
| Size | 10-15 mm | 8-12 mm |
| Habitat | Underground | Forests |
| Diet | Omnivores | Wood Feeders |
| Regions | Europe | United States |
| Conservation | Least Concern | Near Threatened |
Gray Silverfish
An invasive silverfish species spreading rapidly through northern Europe. It is larger and more uniformly gray than the common silverfish.
Did You Know?
It has become a major household pest in Scandinavia since the 2000s.
Primitive Silverfish
The most primitive living silverfish, restricted to old-growth forests of northern California. It retains compound eyes and other ancestral features.
Did You Know?
It is considered a living fossil and the sole surviving member of its family.