Distribution and Abundance: Local.

Primary Habitat: Grassland.

Flight Period: Single brooded in June and July.

Localities: Yardley Chase, Weldon Park, Fineshade and Sutton Heath.

Observations: The caterpillars were common after dark feeding on tufted vetch on 22 May 1993 at Collyweston Quarry.

L.O.N.: 1908. Yardley Chase, Wadenhoe.

First Record: 1902, Victoria County History.