Snail-Case Caddis vs Lance-tipped Darner
Side-by-side species comparison
| Attribute | Snail-Case Caddis | Lance-tipped Darner |
|---|---|---|
| Scientific Name | Helicopsyche borealis | Aeshna constricta |
| Order | Trichoptera | Odonata |
| Family | Helicopsychidae | Aeshnidae |
| Size | 5-7 mm | 65-74 mm |
| Habitat | Rivers & Streams | Ponds & Lakes |
| Diet | Omnivores | Omnivores |
| Regions | North America | North America |
| Conservation | Least Concern | Least Concern |
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.
Lance-tipped Darner
A large brown darner with blue spots common in eastern North America. It is a late-season flier, active well into autumn.
Did You Know?
Its name refers to the lance-shaped cerci (tail appendages) used by males to grasp females during mating.