In July I posted an image with some flies doing a mating dance. This was one of those photos.
I did not know what it was at the time, but I posted a photo to bugguide and it was identified as Euaresta bella.
Sunday I found this fly, in about the same location of the prairie. It seemed a little more yellow but looks pretty similar.
So are they the same, or are they different?
There is actually a key that I will go through at some time in the future. The problem is there are a lot of words that I will have to look up the definitions for, and I am not sure I have a photograph with a good enough angle to get a good ID. One characteristic, the color of the thorax, leads me to think this is Eurasta festiva.
But I will save the full key for some time when I am a little less busy.
Sometimes differences between species are quite subtle. Both species are thought to live on the seeds of ragweed.