Pine Webspinning Sawfly vs Japanese Giant Ichneumon
Side-by-side species comparison
| Attribute | Pine Webspinning Sawfly | Japanese Giant Ichneumon |
|---|---|---|
| Scientific Name | Cephalcia arvensis | Megarhyssa praecellens |
| Order | Hymenoptera | Hymenoptera |
| Family | Pamphiliidae | Ichneumonidae |
| Size | 10-14 mm | 30-45 mm body, ovipositor up to 80 mm |
| Habitat | Farmland | Forests |
| Diet | Omnivores | Wood Feeders |
| Regions | Central and Eastern Europe | Japan, Eastern Asia |
| Conservation | Least Concern | Least Concern |
Pine Webspinning Sawfly
A flat-bodied sawfly with long antennae and dark coloring. Larvae live communally in silk webs spun among spruce needles.
Did You Know?
Periodic outbreaks in spruce monocultures can last several years, with the silk nests becoming a conspicuous feature of infested forests.
Japanese Giant Ichneumon
One of the largest ichneumon wasps in Asia with a remarkably long ovipositor. It parasitizes wood-boring horntail larvae in Japanese forests.
Did You Know?
Japanese naturalists have studied this species since the Edo period, and it appears in historical entomological scrolls.