in many localities of Belgium, preferably in limestone areas.
larva lives in a silken tube at the stem-bases from which it feeds on
several grasses, especially Festuca ovina, or Poa
spp. It hibernates. Pupation takes place in a cocoon in the larval
adults fly usually from the first decade of May till the end of June. They are active at dusk
and later come to light.
Namur, Lavaux Ste.-Anne, 30 April 2007.
(Photo © Chris Steeman)