Last modified: May 7, 2024, 11:38 a.m.
An extremely rare, local, and declining species in Belgium. Nowadays only known from one location in LI.
On the brink of extinction, but visitors come regularly from the nearby populations in the Netherlands.
This species is considered Critically Endangered according to the IUCN Red List category for Flanders 2023.
Native
Hibernates as a small larva and pupates later in a flimsy cocoon among grass or heathers. The adults are active by day and later come to light.
The adults fly in one generation a year; from early June till late August, but most specimens are seen during the last week of June.
The larva feeds on various grasses and herbaceous plants like Corynephorus canescens, Festuca, Erica tetralix, Calluna vulgaris and Vaccinium.
It inhabits nutrient-poor grasslands and heathland.