rather common species throughout Belgium.
larva of the first generation lives in the stem, that of the second
in spun terminal leaves or a flower-head of Trifolium sp.,
mainly Trifolium pratense and Trifolium repens, also
on Lotus corniculatus. The full-fed larva hibernates. It
pupates in a cocoon spun amongst leaf-litter.
adults fly in May-June and again in August. The males are active
in afternoon sunshine, the females towards sunset.
West-Vlaanderen, Oostrozebeke, 25 May 2004.
(Photo © Frans Vandemaele)