Last modified: June 4, 2024, 4:21 p.m.
A very rare and local species throughout Belgium.
Data Deficient due to a lack of sufficient data according to the IUCN Red List category for Flanders 2023.
Native
Wingspan 22–28 mm.
Genitalia preparation is necessary for the correct identification of this species, see O. strigilis Linnaeus, 1758 and O. latruncula Linnaeus, 1758.
The larva hibernates and it pupates in a flimsy cocoon among the roots of the food plant.
The adults come to light and sugar.
The adults fly in one generation from early May till mid-August.
The larva lives on various Graminae.