Chalk Hill Blue vs Large Case Moth

Side-by-side species comparison

Attribute Chalk Hill Blue Large Case Moth
Scientific Name Polyommatus coridon Metura elongatus
Order Lepidoptera Lepidoptera
Family Lycaenidae Psychidae
Size Wingspan 33-40mm Case up to 15 cm long; male moth 2-3 cm wingspan
Habitat Grasslands Woodlands
Diet Herbivores Herbivores
Regions Europe Australia
Conservation Least Concern Least Concern

Chalk Hill Blue

A large blue butterfly with silvery-blue males and brown females. Restricted to chalk and limestone grasslands.

💡

Did You Know?

Males have an ethereal silvery-blue tone unique among European butterflies, visible in large numbers on chalk hills.

Large Case Moth

A bagworm moth whose larva builds a distinctive silk case covered in sticks and leaves. The wingless female never leaves her case, while males are small dark moths.

💡

Did You Know?

The wingless, legless adult female lives and dies inside her larval case after mating.