This moth caterpillar almost turned a darker shade of oak on Saturday when I was staining my back fence. Thankfully I spotted it in time and relocated it near a similar foodplant opposite, stopping to take a few snaps of it. The image below shows it rolled up in defensive mode, making it look less like a caterpillar to a prying bird. The head is in the centre with its suckered, almost toothed feet (prolegs) and front legs (true legs) like fingernails wrapped around it. Double click for a better look.
It is called the Lesser Yellow Underwing Noctua comes, and it may have just come out of winter hibernation (or I inadvertently woke it up). It is not a fussy eater and will feed on a range of bushes, trees and herbaceous plants. It tends to feed at night, then hides from predation during the day. It will eventually pupate underground before becoming the adult as can be seen below.
Double click on images to enlarge.
May 2018, rear garden, Staffordshire, England. © Pete Hillman