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Reviewing my photographs from last April from Mississippi (far South of the USA) I came across my Pyrgotid images. Now I am starting to wonder, do I have two different species here?

These were attracted to lights, 14 April 2006.

I will post the two flies first, then some detailed views. I think Fly #1 is Pyrgota undata.

Comments appreciated. Two different species? Both female? Steyskal says in Pyrgotidae the abdomen is usually elongated, and that in females "segment 7 sometimes longer than rest of abdomen."