Not really enough detail visible of the dorsal pattern to be sure. Please can you rear it in protective custody to get the adult moth for a more certain identification?
Please can you take a little plastic phial with you when you go out and about, in which to capture any larvae you encounter in order to take them into protective custody, 1 for protection ( the death rate of caterpillars in the wild is over 99%), and 2 for rearing to get an adult moth ( only 7% of moth species have known caterpillars) ?