I thought so, beetle larvae.
Also known as cockchafers.
Never seen ones this big and fat.
Could be a number of beetles larvae not just that one, rhino beetle, christmas beetle etc.
Kill them with Confidor, you tend to find them in pot plants a lot, doubt they'd do much to a tree, they're not borers, but they'd eat fine roots.
Ugly buggers, not even the green ants wanted to eat them. |