Solomon's Seal Sawfly

I've just discovered on the RHS website that there is such a creature.  I've always thought that maybe the caterpillars that did the damage each year were gooseberry sawfly as I didn't realise that there were quite so many different species.  This is the first time I've spotted the insect activity and I have to say that this creature looks remarkably like the Berberis sawfly, but there you go! I trust the RHS to know what it's talking about.

Enough rambling!  In fact I've had a pretty rambling sort of day.  I really should have been gardening but didn't quite get there today.