rather rare species in Belgium, but distributed from the coast till the
larva of the first generation lives in the flowers or the flower-stalks
of Senecio jacobaea. That of the second generation
lives in the lower stem and rootstock of the same plant species. It
hibernates full-fed in the larval habitation and pupates there in a
white silken cocoon.
adults have been observed in May-June and again in August-September.
The males are already active at sunset, while the females fly later.
Both come to light.
thorax and labial palps are blackish grey.
West-Vlaanderen, Koksijde, 12 August 2005.
(Photo © Chris Steeman)