Twin-spotted Sphinx Moth vs Chalk Hill Blue

Side-by-side species comparison

Attribute Twin-spotted Sphinx Moth Chalk Hill Blue
Scientific Name Smerinthus jamaicensis Polyommatus coridon
Order Lepidoptera Lepidoptera
Family Sphingidae Lycaenidae
Size 55-80 mm Wingspan 33-40mm
Habitat Woodlands Grasslands
Diet Omnivores Herbivores
Regions North America Europe
Conservation Least Concern Least Concern

Twin-spotted Sphinx Moth

A medium-sized hawk moth with scalloped gray-brown forewings and blue and black eyespots on the hindwings. When threatened, it reveals these spots in a startling flash display.

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Did You Know?

The twin-spotted sphinx can raise its body temperature to 35 degrees Celsius through rapid wing vibrations before taking flight on cool nights.

Chalk Hill Blue

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

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Did You Know?

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