Bactra robustana

Bactra robustana is a moth belonging to the family Tortricidae. The species was first described by Hugo Theodor Christoph in 1872.
It is native to the Palearctic including Europe. where it is a salt marsh species. Genitalia dissection is necessary for differentiation from other Bactra species. Julius von Kennel provides a full description.
The larvae feed internally in the stems of Bolboschoenus maritimus.
The flight period is June and July, and the moths can be attracted to light.