rare and local species in Belgium, mainly observed in the north
of the country.
larva lives inside the stem of various species of Juncus. Hibernates as a small larva and pupates low down in an old stem of the food plant.
adults fly from mid June till late August in one generation a year.
They fly in the hour before dusk and occasionally come to light later
in the night.
Antwerpen, Brecht, 30 July 2004.
(Photo © Chris Steeman)