---

I photographed these two flies one day apart and about 200 meters apart. I am wondering if they are two flies in Ephydridae?

This first fly measured 3.0 mm from the front of the eyes to the rear of the wings. It was around a Sugar Maple tree that was "weeping" sap. The date was yesterday, 6 November. In woodland, West Virginia USA. On this fly I cannot see the arista well in the photo.