Last modified: Nov. 27, 2024, 2:49 p.m.
A very rare species in Belgium, but probably overlooked.
Native
The larva mines the lower stems of different grasses. It frequently changes stems.
It pupates in a white cocoon spun in a folded leaf or leaf-sheath or on a stem of the food plant or other grasses.
The adults can be seen flying during early afternoon sunshine. They occasionally come to light.
The adults fly in one generation a year from June to mid-September.
The larva mines the lower stems of different grasses like Alopecurus, Bromus, Dactylis glomerata or Poa.