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Agree with that for the first two pictures, as it has rows of eye hairs and dark hind tibiae. The third picture is a different species, though, with hind tibiae pale at the base.
My Flickr photos...
Well it is the same animal on the 3 pictures...
Obviously, you took the pictures and so have the advantage! However, the third fly is not tenax, with those bold pale bases to the femora; and the first two are tenax, with the eye hairs, face stripe and a suggestion of a dark, thick hind tibia in first picture (though not clear). Pretty clearly two species, to me at least! ;)
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