Trichiosoma Hawthorn Sawfly vs Mountain Ash Sawfly
Side-by-side species comparison
| Attribute | Trichiosoma Hawthorn Sawfly | Mountain Ash Sawfly |
|---|---|---|
| Scientific Name | Trichiosoma lucorum | Pristiphora geniculata |
| Order | Hymenoptera | Hymenoptera |
| Family | Cimbicidae | Tenthredinidae |
| Size | 16-23 mm | 5-7 mm |
| Habitat | Parks | Mountains |
| Diet | Herbivores | Herbivores |
| Regions | Europe, temperate Asia | Europe, introduced to North America |
| Conservation | Least Concern | Least Concern |
Trichiosoma Hawthorn Sawfly
A large, very hairy sawfly with clubbed antennae and a dense covering of golden-brown hairs. It resembles a large bumblebee in flight.
Did You Know?
The cocoon of this species is remarkably tough and parchment-like, attached to twigs, and can persist for years before the adult finally emerges.
Mountain Ash Sawfly
A small blackish sawfly with pale legs whose green larvae can completely defoliate mountain ash (rowan) trees. Larvae have dark heads and feed gregariously.
Did You Know?
Introduced to North America in the early 1900s, it quickly became the most damaging pest of ornamental mountain ash trees across the continent.