Lesser (?) Treble-bar moth yesterday.

This appears to be a Treble-bar moth, Aplocera sp..  More info' at http://butterfly-conservation.org/1034-1406/lesser-treble-bar.html  It is readily disturbed by day from its food plant or surrounding vegetation, which explains why it was seen on Sunday afternoon in a wild flower meadow on the Downs.  It flies from dusk and after dark.  Thanks to Gwen Fermer for the id..