Gum-Tree Pergid Sawfly vs Arctic Ground Beetle
Side-by-side species comparison
| Attribute | Gum-Tree Pergid Sawfly | Arctic Ground Beetle |
|---|---|---|
| Scientific Name | Perga polita | Amara alpina |
| Order | Hymenoptera | Coleoptera |
| Family | Pergidae | Carabidae |
| Size | 14-20 mm | 5-8 mm |
| Habitat | Woodlands | Tundra & Arctic |
| Diet | Herbivores | Herbivores |
| Regions | Southeastern Australia | Arctic Scandinavia, northern Russia, Siberia, Arctic Canada, Greenland |
| Conservation | Least Concern | Least Concern |
Gum-Tree Pergid Sawfly
A robust Australian sawfly with a dark, polished body. Its gregarious larvae cluster on eucalyptus branches and produce a strong eucalyptus odor when disturbed.
Did You Know?
The powerful eucalyptus-oil smell released by disturbed larvae can be detected from several meters away and serves as a chemical defense.
Arctic Ground Beetle
A small, dark bronze ground beetle found on Arctic and alpine tundra. It has a broad, flattened body ideal for sheltering under stones. Adults are active during the brief Arctic summer and are partially herbivorous.
Did You Know?
This beetle has been found in Quaternary fossil deposits across northern Europe, showing it has inhabited the tundra since the last Ice Age.