Last modified: March 15, 2022, 12:23 p.m.
Extinct in Flanders in 1994, and before only known from two localities in LX where it became extinct around 2006. This species is with 20–50 % declined during the last 25 years in the whole of Europe.
The species hibernates in the larval stage.
The adults fly in one generation a year: from end May till beginning of August, with a peak from 10 June towards 20 July.
The larva lives mainly on Eriophorum vaginatum, but also on Eriophorum angustifolium.