Key information
Silver Y moths vary in colour from purple-grey to almost black, but they all have the characteristic ‘y’ mark on each forewing.
This moth, which often flies during the day with a fast, whirring action, migrates from Europe and can be found throughout the UK, sometimes in abundance.
There are generally two waves of migration: spring and late summer. The caterpillars are green and feed on a variety of low-growing plants.
What they eat:
Adults drink nectar from flowers. Caterpillars eat a variety of plants.
Measurements:
- Length:
- About 40mm
