Burnet moth larva

Burnet moth larva

Observation - Burnet moth larva - UK and Ireland. Description: Found a few of these preparing to pupate on grasses today. Zygaena for sure and I'm guessing these are of 6-spot Burnets as that's the common species at this site - but can the larvae be identified for sure?

Found a few of these preparing to pupate on grasses today. Zygaena for sure and I'm guessing these are of 6-spot Burnets as that's the common species at this site - but can the larvae be identified for sure?