Lesser Broad-bordered Yellow Underwing (Noctua janthe)

Lesser Broad-bordered Yellow Underwing (Noctua janthe)

Observation - Lesser Broad-bordered Yellow Underwing (Noctua janthe) - UK and Ireland. Description: Single caterpillar on leaf. The ID is little more than a guess: can anyone help with a more definite ID, please?

Single caterpillar on leaf. The ID is little more than a guess: can anyone help with a more definite ID, please?