Four-toothed Mason Wasp vs Yellow-Legged Horntail
Side-by-side species comparison
| Attribute | Four-toothed Mason Wasp | Yellow-Legged Horntail |
|---|---|---|
| Scientific Name | Monobia quadridens | Urocerus augur |
| Order | Hymenoptera | Hymenoptera |
| Family | Vespidae | Siricidae |
| Size | 16-19 mm | 20-30 mm |
| Habitat | Woodlands | Forests |
| Diet | Nectar Feeders | Wood Feeders |
| Regions | Eastern North America | East Asia, Japan |
| Conservation | Least Concern | Least Concern |
Four-toothed Mason Wasp
A solitary black and white mason wasp that nests in hollow stems and old carpenter bee tunnels. It provisions cells with paralyzed moth caterpillars.
Did You Know?
It divides its nest tunnel into multiple cells using mud partitions, each containing one egg.
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.