
Appearance
The wingspan is 19–27 mm. Adults are on wing from August to May of the following year. There is one generation per year.
Food
The larvae feed on ''Heracleum sphondylium'', ''Pastinaca sativa'' and ''Apium nodiflorum''. They feed on the flowers and developing seeds, defending their territory by enclosing an umbel in silk, while safely metabolizing the ingested furocoumarins. Pupation takes place in the main stem of the food plant.References:
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