Appeared at the Carboniferous, about 280 to 350 million years ago, the ephemeral are the oldest winged insects still alive. Very sensitive to chemical pollution by pesticides, they are in sharp decline in our field. They play an important role in feeding fish and bats. Our bats serve us as insecticides in the vines…. The purpose of the visit will be to discover the food chain of living in our vineyard, its fragility and its importance for the sustainability of our terroirs.