This extraordinary, presumed aberrant Riband Wave (top with ordinary Riband Wave f. remutata below) had me trawling through the leps.it website, which illustrates all European and north African species, in case it was a different species. There remains a possibility that it's an adventive from farther afield, but I suspect it will prove to be an aberration.
Crescent Dart - only the third one I've trapped but the smartest by a mile.
Barred Yellow - always a joy to see this neat 'carpet'.
Ivy Broomrape - Madeira Walk, Exmouth. Thanks to Kev and Debs for the tip on where to locate this amazing flower. It lacks any green chlorophyll so is unable to photosynthesise. Instead the plant's roots attach to those of a host plant, in this case Ivy, and steal its water and nutrients. A parasitic plant nonetheless and one I was very keen to see.
Marbled White - so much easier to photograph butterflies in the rain if you can find them...