Hellula undalis (Fabricius, 1781)
old world webworm
The young larva mines a blotch in the youngest leaves; the older larva lives free on the plant, spinning the leaves together with a copious amount of silk. They also bore in the stem.
Brassicaceae, Cleomaceae, narrowly polyphagous
Larvae in April-May and September-October (Hering, 1957a).
Not known from the Benelux countries (Fauna Europaea, 2009).
distribution within Europe
From Britain and Denmark to the Mediterranean islands and the Black Sea coast (Fauna Europaea, 2009); in large parts of Europe only as a rare migrant.
Body, including pronotum and anal shield greyish green, wit 5-9 vague reddish brown length lines. Head dark brown; pinacula small, brownish black.
In tropical regions all over the world a pest op Brassicaceae crops (“Cabbage Webworm”).