aggregation of the dangerous toxic oak processionary moth,thaumetopoea processionea caterpillar

arthropoda arthropod ecology eichen-prozessionsspinner insect lepidoptera moth nature notodontidae oak processionary prominent puss skin thaumetopoea processionea allergic animal biology caterpillar closeup control damage danger dangerous entomology health infection infestation invertebrate irritate long hairs macro natural nocturnal outdoors pest plague poisonous problem processional butterflies single stinging toxic wild wildlife aggregation their