Black Headed Birch Sawfly vs Bronze Furrow Bee
Side-by-side species comparison
| Attribute | Black Headed Birch Sawfly | Bronze Furrow Bee |
|---|---|---|
| Scientific Name | Craesus alniastri | Halictus tumulorum |
| Order | Hymenoptera | Hymenoptera |
| Family | Tenthredinidae | Halictidae |
| Size | 7-9 mm | 6-8 mm |
| Habitat | Woodlands | Tundra & Arctic |
| Diet | Herbivores | Nectar Feeders |
| Regions | Europe | Europe, Asia, North Africa |
| Conservation | Least Concern | Least Concern |
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.
Bronze Furrow Bee
A small, dark metallic furrow bee with a subtle bronze sheen widespread across the Palearctic. It is primitively eusocial with small colonies.
Did You Know?
It is one of the most ubiquitous wild bees in Europe and can be found foraging in virtually any flower-rich habitat from sea level to mountaintops.