Cranberry Blue vs Fox Moth

Side-by-side species comparison

Attribute Cranberry Blue Fox Moth
Scientific Name Plebejus optilete Macrothylacia rubi
Order Lepidoptera Lepidoptera
Family Lycaenidae Lasiocampidae
Size 22-28 mm wingspan Wingspan 50-65mm
Habitat Underground Beaches & Coastal
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.

Fox Moth

A richly colored russet-brown moth. The large hairy black caterpillar is commonly seen crossing paths in autumn.

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Did You Know?

The large dark caterpillar is one of the most commonly seen caterpillars in autumn as it searches for a hibernation site.