macro photography of pine processionary thaumetopoea pityocampa with the focus on the central individual

animal animals background black bug butterfly caterpillar caterpillars closeup cute danger dangerous environment europe forest furry hair hairy head health immunity infection infestation insect invertebrate larva larvae lepidoptera many moth natural nature nest pest pheromone pine pityocampa plague poisonous procession processionary spiky swarm thaumetopoea trap tree wildlife worm yellow young