Poss sawfly larva on Hedge Woundwort

Poss sawfly larva on Hedge Woundwort

Observation - Poss sawfly larva on Hedge Woundwort. Description: One of these seen on Hedge Woundwort, Stachys sylvatica, by the side of the path through the wood. Couldn't find any reference to a sawfly that eats Stachys. Is there a good sawfly website I could have tried?

One of these seen on Hedge Woundwort, Stachys sylvatica, by the side of the path through the wood. Couldn't find any reference to a sawfly that eats Stachys. Is there a good sawfly website I could have tried?