description Spindle ermine moth Overview
The spindle ermine moth, Yponomeuta cagnagella, is a small ermine moth in the family Yponomeutidae associated mainly with European spindle, Euonymus europaeus. Its caterpillars feed gregariously and build conspicuous silken webs over shoots and foliage; dense colonies can defoliate a bush or sections of hedgerow. Adults have a wingspan of roughly 19-26 mm, but reliable identification can be difficult because the species resembles other Yponomeuta moths. [UKMoths species account](https://www.ukmoths.org.uk/species/yponomeuta-cagnagella/)
help Spindle ermine moth FAQ
Which plant does the spindle ermine moth use?
The spindle ermine moth, Yponomeuta cagnagella, is mainly associated with European spindle, Euonymus europaeus. Its caterpillars feed on the plant's shoots and foliage.
Why does a spindle tree get covered in silk?
Spindle ermine moth caterpillars feed in groups and spin conspicuous silken webs. Dense colonies can cover shoots and leaves so heavily that they may defoliate the plant.
What is the scientific name of the spindle ermine moth?
Its scientific name is Yponomeuta cagnagella. It belongs to the small ermine moth family Yponomeutidae.
Do spindle ermine moth caterpillars live alone?
No, the caterpillars are gregarious, meaning they feed together in groups. Their group feeding produces the noticeable webbing associated with this moth.
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