Snailcase Bagworm vs Nut Weevil
Side-by-side species comparison
| Attribute | Snailcase Bagworm | Nut Weevil |
|---|---|---|
| Scientific Name | Apterona helicoidella | Curculio nucum |
| Order | Lepidoptera | Coleoptera |
| Family | Psychidae | Curculionidae |
| Size | Case about 5-6 mm; male wingspan 10 mm | 6-9 mm |
| Habitat | Grasslands | Orchards |
| Diet | Omnivores | Omnivores |
| Regions | Europe, Asia Minor, introduced to North America | Europe |
| Conservation | Least Concern | Least Concern |
Snailcase Bagworm
A tiny bagworm moth whose larva builds a coiled, snail-shell-shaped case from silk and sand grains. It reproduces entirely by parthenogenesis in most of its range.
Did You Know?
Males are almost never found; most populations consist entirely of females reproducing without mating.
Nut Weevil
A small weevil with a slender, downward-curved snout used to bore into hazelnuts. The larva feeds inside the nut before dropping to the ground to pupate.
Did You Know?
A tiny round hole in a hazelnut shell is the exit point of the fully grown larva.