Small Rivulet vs Large Case Moth
Side-by-side species comparison
| Attribute | Small Rivulet | Large Case Moth |
|---|---|---|
| Scientific Name | Perizoma alchemillata | Metura elongatus |
| Order | Lepidoptera | Lepidoptera |
| Family | Geometridae | Psychidae |
| Size | 18-22 mm wingspan | Case up to 15 cm long; male moth 2-3 cm wingspan |
| Habitat | Rivers & Streams | Woodlands |
| Diet | Herbivores | Herbivores |
| Regions | Europe | Australia |
| Conservation | Least Concern | Least Concern |
Small Rivulet
A delicate small moth found in damp habitats where hemp agrimony grows. The larvae feed inside the flowers. Has subtle grey and white wing markings.
Did You Know?
The larvae develop entirely within hemp agrimony flower heads, emerging only to pupate.
Large Case Moth
A bagworm moth whose larva builds a distinctive silk case covered in sticks and leaves. The wingless female never leaves her case, while males are small dark moths.
Did You Know?
The wingless, legless adult female lives and dies inside her larval case after mating.