141380 Lobster Moth Stauropus fagi Length 32mm. An intriguing moth named after the bizarre appearance of its larva. Adult has reddish-grey wings, usually with an orange-pink flush; it is well camouflaged when resting on tree bark. Flies May–July. Larva looks and behaves like an ant when tiny; with maturity its long legs give it a crustacean-like appearance. Larva feeds on Beech, oaks and Hazel. Locally common only in the south.