very rare and local species throughout Belgium. Recent records mainly
known from the northern half of our country.It was formerly more
larva lives inside the stems of Poaceae or in a cocoon amongst grass
blades. Pupation inside the cocoon or onder a stone. Overwinters
as an egg.
adults fly in one generation a year: from early July till end September,
but are mainly seen end of July till mid August. During the day they
visit flowers, especially thistles. They come to light in small numbers.
Antwerpen, Oostmalle, 20 July 2004.
(Photo © Wim Veraghtert)