Allotments 4 All

hi all hope you have had a great day gardening :)

just wondered if anyone had any ideas what might be eating my clematis flowers? Little holes have appeared in the petals (not nibbled around the edges)

Any ides for treating the problem would be much apreciated!

               thanks all ;)

Not leaf cutters or anything? Holes in the middle are a sawfly speciality...  :-\