Polar Willow Gall Sawfly vs Peach Slug Sawfly
Side-by-side species comparison
| Attribute | Polar Willow Gall Sawfly | Peach Slug Sawfly |
|---|---|---|
| Scientific Name | Euura arcticum | Caliroa annulipes |
| Order | Hymenoptera | Hymenoptera |
| Family | Tenthredinidae | Tenthredinidae |
| Size | 3-5 mm | 4-6 mm |
| Habitat | Tundra & Arctic | Orchards |
| Diet | Gall Makers | Fruit Feeders |
| Regions | Arctic Canada, Alaska, Greenland, Arctic Scandinavia, Svalbard | Europe |
| Conservation | Least Concern | Least Concern |
Polar Willow Gall Sawfly
A tiny sawfly that induces galls on Arctic willow stems by injecting chemicals during egg-laying. The larva develops safely inside the swollen plant tissue. Adults are small and dark with clear wings.
Did You Know?
The gall provides the larva with both food and insulation, maintaining temperatures several degrees warmer than the outside air.
Peach Slug Sawfly
A small, shiny black sawfly whose slug-like larvae feed on the upper leaf surface of various fruit trees, including peach, cherry, and hawthorn.
Did You Know?
Unlike the closely related pear slug, this species feeds primarily from the upper leaf surface rather than the lower surface.