Cranberry Blue vs Tau Emperor Moth

Side-by-side species comparison

Attribute Cranberry Blue Tau Emperor Moth
Scientific Name Plebejus optilete Aglia tau
Order Lepidoptera Lepidoptera
Family Lycaenidae Saturniidae
Size 22-28 mm wingspan 55-80 mm wingspan
Habitat Underground Woodlands
Diet Nectar Feeders Herbivores
Regions Scandinavia, Finland, northern Russia, Siberia, subarctic Japan Europe
Conservation Least Concern Least Concern

Cranberry Blue

A small butterfly with violet-blue upperwings in males and dark brown in females. The hindwing underside has a diagnostic metallic silver spot. It frequents boggy habitats where its larval foodplant cranberry grows.

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Did You Know?

The caterpillar is tended by ants which protect it from parasitoids in exchange for sweet honeydew secretions.

Tau Emperor Moth

A day-flying silk moth with a distinctive T-shaped mark on each wing.

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Did You Know?

Males fly rapidly in sunshine while females rest on tree trunks.