White Underwing vs Slack Creek Stag Beetle

Side-by-side species comparison

Attribute White Underwing Slack Creek Stag Beetle
Scientific Name Catocala relicta Lissotes menalcas
Order Lepidoptera Coleoptera
Family Erebidae Lucanidae
Size 70-85 mm wingspan 12-20mm
Habitat Woodlands Woodlands
Diet Sap Feeders Wood Feeders
Regions Northern United States and southern Canada Oceania
Conservation Least Concern Endangered

White Underwing

A striking underwing moth with white and black banded forewings that mimics birch bark. Its hindwings are black with broad white bands.

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Did You Know?

It is one of the only underwing moths with white rather than colored hindwings, matching the white bark of its birch tree hosts.

Slack Creek Stag Beetle

A small glossy black stag beetle endemic to Tasmania. Males have modest but distinctly curved mandibles.

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Did You Know?

It is found only in a tiny area of northeast Tasmania and is threatened by logging of its old-growth forest habitat.