bag-shelter moth processionary caterpillars

animal bug caterpillar closeup danger dangerous environment europe hair hairy infection infestation insect invertebrate irritating itchy larva larvae lepidoptera lunifer moth national natural nature nest ochrogaster outback parasite park pest pine pityocampa plague poisonous procession processionary protection spain spider thaumetopoea thaumetopoeidae tree urticaria urticating web wildlife