Longhorn Caddisfly vs Japanese Dobsonfly
Side-by-side species comparison
| Attribute | Longhorn Caddisfly | Japanese Dobsonfly |
|---|---|---|
| Scientific Name | Oecetis ochracea | Protohermes grandis |
| Order | Trichoptera | Megaloptera |
| Family | Leptoceridae | Corydalidae |
| Size | 8-12 mm | 40-60 mm body length |
| Habitat | Ponds & Lakes | Rivers & Streams |
| Diet | Predators | Predators |
| Regions | Europe, Asia | East Asia, Japan |
| Conservation | Least Concern | Least Concern |
Longhorn Caddisfly
A slender caddisfly with antennae much longer than its body. Larvae are unusual among caddisflies in being active predators that hunt in their cases.
Did You Know?
These caddisfly larvae carry their cases while stalking prey like tiny hermit crabs hunting on the lake floor.
Japanese Dobsonfly
A large aquatic insect known as 'hebi-tonbo' (snake dragonfly) in Japanese. The adult males have elongated, curved mandibles. Larvae called 'magotaro-mushi' are used as fishing bait.
Did You Know?
Dobsonfly larvae are prized as live fishing bait in Japan and are collected from stream rocks by anglers targeting ayu (sweetfish).