Mayfly?

Mayfly?

Observation - Mayfly?. Description: From the composite image, I think the antennae on the head can just be resolved as being rather short. Though only one complete tail filament is visible, what appears to be the beginning of a second can be seen in one of the images. From George McGavin

From the composite image, I think the antennae on the head can just be resolved as being rather short. Though only one complete tail filament is visible, what appears to be the beginning of a second can be seen in one of the images.
From George McGavin’s book on Insects and Spiders, p. 20, Chloeon dipterum (the Pond Olive) might seem the best fit – albeit a more orange version than the individual illustrated there.