What its this grub thing?

What its this grub thing?

Observation - What its this grub thing? - UK and Ireland. Description: Sorry about blurred pic, he was not impressed at bring accidentally dug up and was jumping around, wiggling and arching his back! Grub like creature about the size of my little finger, grey ish with orange head and legs at the front end.

Sorry about blurred pic, he was not impressed at bring accidentally dug up and was jumping around, wiggling and arching his back! Grub like creature about the size of my little finger, grey ish with orange head and legs at the front end.