Japanese Beetle vs Rose Slug Sawfly
Side-by-side species comparison
| Attribute | Japanese Beetle | Rose Slug Sawfly |
|---|---|---|
| Scientific Name | Popillia japonica | Endelomyia aethiops |
| Order | Coleoptera | Hymenoptera |
| Family | Scarabaeidae | Tenthredinidae |
| Size | 8-12 mm | 4-5 mm |
| Habitat | Gardens | Underground |
| Diet | Herbivores | Herbivores |
| Regions | North America, East Asia, Europe | Europe, introduced to North America |
| Conservation | Not Evaluated | Least Concern |
Japanese Beetle
An iridescent green and copper beetle that skeletonizes leaves of over 300 plant species. Larvae are white grubs that damage lawns and turf.
Did You Know?
Japanese beetles release aggregation pheromones that attract more beetles, leading to mass feeding frenzies on plants.
Rose Slug Sawfly
A small, dark sawfly whose slug-like larvae skeletonize rose leaves by feeding on the upper leaf surface. Larvae are pale yellowish-green and covered in a thin mucus layer.
Did You Know?
Damaged rose leaves develop a characteristic translucent, papery appearance as only the lower epidermis remains after larval feeding.