Japanese Horntail vs Common Pine Sawfly
Side-by-side species comparison
| Attribute | Japanese Horntail | Common Pine Sawfly |
|---|---|---|
| Scientific Name | Eriotremex formosanus | Diprion pini |
| Order | Hymenoptera | Hymenoptera |
| Family | Siricidae | Diprionidae |
| Size | 20-35 mm | 7-10 mm (adult) |
| Habitat | Woodlands | Forests |
| Diet | Wood Feeders | Wood Feeders |
| Regions | East Asia, Taiwan, introduced to southeastern United States | Europe, Asia |
| Conservation | Least Concern | Not Evaluated |
Japanese Horntail
A large wood wasp with a robust reddish-brown body and dark wings. Native to East Asia, it attacks stressed and recently felled hardwood trees.
Did You Know?
This species was first detected in North America in 1974 and is one of the few tropical siricid wood wasps to establish invasive populations.
Common Pine Sawfly
One of the most important pine defoliators in European forestry. Outbreaks cause growth losses and predispose trees to bark beetle attack.
Did You Know?
Larvae sequester pine resin and can squirt it at predators when threatened.