Blue Horntail vs Didius Blue Morpho

Side-by-side species comparison

Attribute	Blue Horntail	Didius Blue Morpho
Scientific Name	Sirex juvencus	Morpho didius
Order	Hymenoptera	Lepidoptera
Family	Siricidae	Nymphalidae
Size	12–30 mm	130-150 mm wingspan
Habitat	Forests	Forests
Diet	Wood Feeders	Sap Feeders
Regions	Europe, North America, Asia	South America (Peru)
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.

Didius Blue Morpho

One of the largest Morpho butterflies, with a wingspan reaching up to 150 mm. The males display brilliant metallic blue upperwings, while the underwings are brown with prominent eyespots. Found in cloud forests of Peru at elevations between 800 and 1800 meters.

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Did You Know?

The iridescent blue color is not from pigment but from microscopic scales that refract light, a principle now used in anti-counterfeiting technology.