Photographed while laying eggs on a salad at the akron zoo. Stayed in place for several minutes and after these photos laid perhaps 20 white linear eggs in a cluster with the long axis of the eggs parallel to each other (like a bundle of sticks held upright). Looks much like the large flies on my compost heap that buzz just above compost surface. I am too rusty at flies to get this to run through the key properly, although the venation looks distinctive.