Pine Bark Longhorn vs Teucer Giant Owl

Side-by-side species comparison

Attribute	Pine Bark Longhorn	Teucer Giant Owl
Scientific Name	Asemum striatum	Caligo teucer
Order	Coleoptera	Lepidoptera
Family	Cerambycidae	Nymphalidae
Size	10-20 mm	140-180 mm wingspan
Habitat	Forests	Forests
Diet	Wood Feeders	Fruit Feeders
Regions	Europe, North America, Siberia, Japan	Brazil, Peru, Colombia, Ecuador, French Guiana
Conservation	Least Concern	Least Concern

Pine Bark Longhorn

A flat, dark grey-brown spondylidine beetle with longitudinal ridges on the elytra. Common in conifer forests across the Northern Hemisphere, it breeds under the bark of dead pines. Adults are nocturnal and hide under bark by day.

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Did You Know?

Adults occasionally emerge from structural pine timber in buildings, sometimes years after the wood was milled.

Teucer Giant Owl

One of the largest owl butterflies with a prominent blue-purple sheen on the upper wings. Its underside displays a large, highly detailed false eye pattern.

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Did You Know?

Adults emerge at twilight to avoid visually hunting birds, using the dim light to navigate safely between feeding sites.