species in Belgium, though recorded from all provinces. Not so
frequently observed in the southern part of the country.
larva lives in the stem of Iris pseudacorus, Typha
similar species which grow in the water. Hibernates as an egg, attached
to a leaf of the food plant. Pupates head upwards by a prepared window
in a stem.
adults fly in one generation a year; starting from early July till
early October. They come to light.
Antwerpen, Willebroek, 15 July 2005.
(Photo © Leo Janssen)