Argent and Sable Moth vs Cranberry Blue

Side-by-side species comparison

Attribute Argent and Sable Moth Cranberry Blue
Scientific Name Rheumaptera hastata Plebejus optilete
Order Lepidoptera Lepidoptera
Family Geometridae Lycaenidae
Size 28-34 mm wingspan 22-28 mm wingspan
Habitat Woodlands Underground
Diet Herbivores Nectar Feeders
Regions Northern Europe Scandinavia, Finland, northern Russia, Siberia, subarctic Japan
Conservation Near Threatened Least Concern

Argent and Sable Moth

A strikingly patterned black and white day-flying moth. Found on moorland and in birch woodland. Has declined severely in southern parts of its range. Named from heraldic terms.

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Did You Know?

Named using heraldic terms: 'argent' for silver/white and 'sable' for black, describing its bold pattern.

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.