Dobsonfly vs Indian Owlfly

Side-by-side species comparison

Attribute Dobsonfly Indian Owlfly
Scientific Name Corydalus cornutus Helicomitus festivus
Order Neuroptera Neuroptera
Family Corydalidae Ascalaphidae
Size 40-55 mm body, 125 mm wingspan 38-50 mm wingspan
Habitat Rivers & Streams Forests
Diet Omnivores Predators
Regions North America India, Sri Lanka, Southeast Asia
Conservation Least Concern Least Concern

Dobsonfly

Large insects with intimidating mandibles in males that are actually too large to bite effectively. Aquatic hellgrammite larvae are prized as fishing bait and indicate clean water.

💡

Did You Know?

Male dobsonflies have terrifying mandibles up to 40 mm long, but they are so large the males cannot actually generate enough force to pinch — the females bite harder.

Indian Owlfly

A tropical Asian owlfly with long antennae and patterned wings. Found along forest edges and clearings in the Indian subcontinent.

💡

Did You Know?

Its large clubbed antennae are thought to help detect prey scent during aerial hunts.