Ilia Underwing vs Black-striped Flower Longhorn

Side-by-side species comparison

Attribute Ilia Underwing Black-striped Flower Longhorn
Scientific Name Catocala ilia Strangalia attenuata
Order Lepidoptera Coleoptera
Family Erebidae Cerambycidae
Size 70-95 mm wingspan 14-20 mm
Habitat Woodlands Woodlands
Diet Predators Wood Feeders
Regions Eastern North America from southern Canada to the Gulf states Europe, Turkey, Caucasus, Iran
Conservation Least Concern Least Concern

Ilia Underwing

A large moth with bark-patterned gray forewings that conceal bright reddish-orange and black hindwings. When startled, it flashes its colorful hindwings to confuse predators.

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Did You Know?

It rests head-down on tree trunks during the day, where its cryptic forewings blend perfectly with oak bark.

Black-striped Flower Longhorn

A slender, wasp-like flower longhorn with yellow elytra bearing longitudinal black stripes. Found in deciduous woodlands across Europe and the Middle East. Adults are active fliers that visit a wide range of flowers.

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Did You Know?

Its narrow waist and striped pattern make it one of the most effective wasp mimics among European flower longhorns.