Grey Dagger Caterpillar

The is the caterpillar of the Grey Dagger Moth. Here is some detail about it:

The caterpillars of the Grey Dagger Moth have two, tall hairy humps on their backs, and a wide, bright yellow stripe running along the top of the body.

Latin name: Acronicta psi
Size: Has a wingspan of approximately 40mms.
Distribution: Common in England, Northern Ireland and Wales. Less frequently seen in Scotland.
Months seen: June to September.Habitat: Hedgerows, parks and gardens.
Food: Nectar.
Special features: The grey dagger is another of our noctuid moths. It gets its name from the black dagger-like markings on its grey wings.