Yellow-Legged Horntail vs Cylindrical Bark Hister
Side-by-side species comparison
| Attribute | Yellow-Legged Horntail | Cylindrical Bark Hister |
|---|---|---|
| Scientific Name | Urocerus augur | Teretrius fabricii |
| Order | Hymenoptera | Coleoptera |
| Family | Siricidae | Histeridae |
| Size | 20-30 mm | 2-3 mm |
| Habitat | Forests | Woodlands |
| Diet | Wood Feeders | Wood Feeders |
| Regions | East Asia, Japan | Europe, North America (introduced) |
| Conservation | Least Concern | Least Concern |
Yellow-Legged Horntail
A large, dark-bodied wood wasp with bright yellow legs that contrast sharply with its blue-black body. Found primarily in conifer forests of eastern Asia.
Did You Know?
Like all horntails, the short horn-like projection at the tail is not a stinger but a structural feature called a cornus, present in both sexes.
Cylindrical Bark Hister
A tiny, cylindrical hister beetle that lives under bark of dead trees. Its elongated shape allows it to follow bark beetle tunnels.
Did You Know?
It was intentionally introduced to North America from Europe to help control the smaller European elm bark beetle.