Buff Tip moth caterpillars (Phalera bucephala)

Buff Tip moth eggs are laid in batches on various deciduous tree species. The caterpillars feed gregariously in the summer and often defoliate whole branches. The ones shown here are feeding on Hornbeam.

Buff Tip moth caterpillars on Hornbeam, Bliss Gate, 6 September 2016 ©Rosemary Winnall