I need help identifying a light brown hairy dragonfly-like insect in Ohio?

It's shorter than a regular dragon fly, light brown and hairy looking. The body is thicker looking that a regular dragonfly, but appears to have two pairs of wings. It flies constantly, never holding still for more that a couple of seconds before darting off. They seemed to travel in pairs within a couple of feet of each other. It flies along the edge of a medium sized lake along the mowed edge of the lake. They stayed low over the water, but seems to stay within three to five feet of land but not venturing inland. There were dozens of them at the lake, (Hudson Springs Lake, in northern Ohio) but I can't describe in more details due to their darting about. It reminded me a some sort of fuzzy lure a fly fisherman might use. Do you have any ideas?