Distribution and Abundance:  Common.

Primary Habitat:  Wetland.

Flight Period:  Single brooded from August to October.

Observations:  The pupa was numerous inside the stems of thistles in August 1971 in a damp field near to Cransley Reservoir.

L.O.N.:  1906. Kettering, Faxton, Brigstock, Blatherwyck. (sic).  Not very common.

First Record:  1882, Hull & Tomalin.