
Community identification
Dobsonfly
Corydalus cornutus
- Order & Family
- Order Megaloptera, Family Corydalidae
- Size
- Large insects, ranging from 50mm to 75mm in length with a wingspan up to 130mm.
Natural Habitat
Near freshwater streams, rivers, and woodland areas across North America.
Diet & Feeding
Larvae are aggressive aquatic predators feeding on other aquatic insects. Adult males do not feed, while females may consume liquids like nectar.
Behavior Patterns
Nocturnal adults are strongly attracted to lights and spend larval stages underwater beneath rocks.
Risks & Benefits
Harmless to humans, though females can deliver a painful bite if handled. Larvae serve as vital bioindicators of high water quality.