Fimble Brown Lacewing vs Snail-Case Caddis
Side-by-side species comparison
| Attribute | Fimble Brown Lacewing | Snail-Case Caddis |
|---|---|---|
| Scientific Name | Hemerobius fenestratus | Helicopsyche borealis |
| Order | Neuroptera | Trichoptera |
| Family | Hemerobiidae | Helicopsychidae |
| Size | 8-12 mm wingspan | 5-7 mm |
| Habitat | Forests | Rivers & Streams |
| Diet | Omnivores | Omnivores |
| Regions | Northern Europe, Scandinavia, Russia | North America |
| Conservation | Least Concern | Least Concern |
Fimble Brown Lacewing
A small brown lacewing with fenestrate wing markings found in boreal forests. Associated with spruce and birch in northern latitudes.
Did You Know?
It is one of the most cold-tolerant brown lacewings, found well into the subarctic zone.
Snail-Case Caddis
A remarkable caddisfly whose larvae build coiled cases from sand grains that closely resemble tiny snail shells. It is widespread in North American streams.
Did You Know?
Its spiral case is so convincing that early naturalists classified the larvae as snails rather than insects.