Black-Headed Ash Sawfly vs Emerald Cockroach Wasp
Side-by-side species comparison
| Attribute | Black-Headed Ash Sawfly | Emerald Cockroach Wasp |
|---|---|---|
| Scientific Name | Tethida barda | Ampulex compressa |
| Order | Hymenoptera | Hymenoptera |
| Family | Tenthredinidae | Ampulicidae |
| Size | 6-8 mm | 22 mm |
| Habitat | Forests | Forests |
| Diet | Herbivores | Nectar Feeders |
| Regions | Eastern North America | Africa, Asia, Oceania |
| Conservation | Least Concern | Least Concern |
Black-Headed Ash Sawfly
A small sawfly whose larvae have distinctive black heads and whitish-green bodies. They feed on the underside of ash leaflets, skeletonizing them.
Did You Know?
This species is often mistaken for moth caterpillars, but like all sawfly larvae, it has more than five pairs of prolegs on its abdomen.
Emerald Cockroach Wasp
A brilliant emerald-green wasp that zombifies cockroaches. It delivers precise stings to the cockroachs brain, removing its escape reflex. Then leads it by the antenna like a dog on a leash.
Did You Know?
The emerald cockroach wasp performs neurosurgery — it stings a cockroach twice in precise brain locations to disable its escape reflex, then walks it to a burrow like a zombie.