6970.    They are ruining our backyard relaxation. They are all over our deck, patio furniture covers and other places. They have wings, long antennae and are blackish brown in color. They don’t bite and will fly into your eyes, ears, mouth and nose. We need to identify them And need info on how to get rid of them. Any assistance will be greatly appreciated. Windsor, Ontario. Canada

Number 6970. These appear to be caddisflies (order Trichoptera). These are harmless; the adults either do not feed at all or may partake of nectar like their sister group, butterflies and moths. Their larvae are aquatic, and constitute an important part of the freshwater food web. You would not be able to get rid of them without causing great harm to other freshwater organisms. Click here for more detailed information.