See here for more images of this species: BG.
A similar species, P. apicalis, is found primarily in the Midwest but Blocker (1970) notes that is has been reported from southeastern States; it has denser setae on the wings and a head that is notably wider, being almost as wide as the pronotum; the lateral margins of the pronotum are almost parallel. (Beamer & Lawson, 1945)