Blue Horntail vs Indian Moon Beetle

Side-by-side species comparison

Attribute Blue Horntail Indian Moon Beetle
Scientific Name Sirex juvencus Dicranocephalus wallichii
Order Hymenoptera Coleoptera
Family Siricidae Scarabaeidae
Size 12–30 mm 30-50 mm (males including horns)
Habitat Forests Forests
Diet Wood Feeders Wood Feeders
Regions Europe, North America, Asia South Asia (India, Nepal, Bhutan, northeastern Himalayan region)
Conservation Not Evaluated Least Concern

Blue Horntail

A metallic blue-black horntail wasp found across the Northern Hemisphere. It breeds in recently dead or dying spruce and fir trees.

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Did You Know?

Adults sometimes emerge from milled lumber years later, boring clean round exit holes through flooring or walls.

Indian Moon Beetle

A spectacular stag beetle relative with males bearing two long, curved, crescent-shaped horns on the head. The body is robust and olive-green to dark brown with a hairy underside.

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Did You Know?

Males use their impressive crescent-shaped horns to wrestle rival males off branches during disputes over feeding sites and mates.