Coordinates: 31.712530, -110.875272
Elevation: 5,424 ft
I caught this caddisfly while it was hovering approximately a foot over a small pond in a stream. Curiously, it quickly dropped to the water surface and immediately returned to hovering at its original spot. It performed this action sequence at least five times before I swept it. I'm guessing that it was dipping the tip of her abdomen into the water and laying eggs (assuming it was a female). I understand that different caddisfly species lay eggs near, on, or in the water.

Greater resolution image here