Spine-Tailed Earwig vs Black Headed Birch Sawfly
Side-by-side species comparison
| Attribute | Spine-Tailed Earwig | Black Headed Birch Sawfly |
|---|---|---|
| Scientific Name | Doru aculeatum | Craesus alniastri |
| Order | Dermaptera | Hymenoptera |
| Family | Forficulidae | Tenthredinidae |
| Size | 10-14 mm | 7-9 mm |
| Habitat | Farmland | Woodlands |
| Diet | Herbivores | Herbivores |
| Regions | North America | Europe |
| Conservation | Least Concern | Least Concern |
Spine-Tailed Earwig
A slender earwig found in cornfields and grassy habitats across eastern North America. It shelters in the leaf whorls of corn and other tall grasses.
Did You Know?
Farmers consider this earwig beneficial because it preys heavily on corn earworm eggs and aphids in crop fields.
Black Headed Birch Sawfly
A medium-sized sawfly with a dark head and orange body. Larvae are greenish-blue with black heads and feed communally on birch and alder leaves.
Did You Know?
When a predator approaches, the entire colony of larvae simultaneously rears up and thrashes, making the group appear larger and more threatening.