description Merveille du Jour Overview
Griposia aprilina, commonly known as Merveille du Jour, is a European noctuid moth. It’s notable for its exceptional camouflage mimicking lichen growth on oak trees. This green and white coloration protects it from predators. The moth is primarily observed in Britain and Ireland and is of interest to entomologists studying nocturnal insects and their adaptations within the Lepidoptera order.
help Merveille du Jour FAQ
When can I see a Merveille du Jour moth in Britain?
Adult Griposia aprilina moths fly mainly during September and October, with records sometimes extending into November. They visit light traps but are usually associated with oak woodland and wooded parks.
Why does the Merveille du Jour look like lichen?
Its pale green, white, and black forewings break up its outline when it rests on lichen-covered bark. The camouflage is especially convincing on mature oak trunks, where a motionless adult can be difficult to detect.
What do Merveille du Jour caterpillars eat?
The caterpillars feed on oak species in the genus Quercus. Young larvae eat buds and flowers before moving onto the leaves as they grow.
How large is a Merveille du Jour moth?
An adult normally has a wingspan of roughly 42 to 52 millimetres. Fresh specimens are vividly green, but preserved individuals can fade to a brownish-yellow color.
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