This beautiful and impressive moth is on the wing this month. The larvae live inside small branches of various deciduous trees, taking up to 3 years to mature. The adults are nocturnal and cannot feed, so need to reproduce speedily when they emerge. The males (as seen here) have impressively large comb-like antennae so that they can pick up the pheromone scents of emerging females. These moths are attracted to light but can sometimes be seen during the daytime resting on tree trunks.