Pretty caterpillar - ID help needed

Pretty caterpillar - ID help needed

Observation - Pretty caterpillar - ID help needed. Description: Approx length 3 cm. This caterpillar was on the move, or had possibly fallen from a sloe bush above where it was found, on the rim of my washing basket. The other plants in the area were weedy grass, docks, nettles, dandelions etc.

Approx length 3 cm. This caterpillar was on the move, or had possibly fallen from a sloe bush above where it was found, on the rim of my washing basket. The other plants in the area were weedy grass, docks, nettles, dandelions etc.