Gerry and I have discussed this image in depth.

Firstly I'd like to quote Gerry as follows: "This is a tricky one and I do favor the original diagnosis of linnei. Despite the fact that the wings may have dried flat, it is obvious that the costal margin bends in both wings are extremely bowed. Having both wings dry in this formation due to a poor eclose process is suspect in the margin bend. If it happened in only one then I think you may have a good argument but both are extremely bowed.

While I know that it has been agreed that female linnei do not exhibit the pruinose spots, it only takes one to throw that key out just like the costal margin bend everyone is agreeing to throw out in southern locals. The shade of green in this cicada along with its cruciform elevation pattern of coloration on the pronotum and pubescence seen medially on the abdomen makes this specimen nearly identical to specimens that I have here of linnei from New York."

Later
Gerry
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Although I agree with all points expressed above, I still have reservation with regards to this image (reasons listed below).

Deformation in the wings can have a significant impact on wing shape. This particular deformation is likely the result of wing inflation on a flat horizontal surface or falling to a horizontal surface before the wings fully hardened....as opposed to hanging vertically. Although this cicada may well be T. linnei, deformation should be considered and trepidation used while id'ing this individual based on wing features alone.

Additional thoughts

1) T. linnei and T. pruinosus females can be very difficult to separate even when characters are well developed (no deformation)

2) This cicada is female and possesses well developed pruinose spots (NOT typical of T. linnei, but typical of T. pruinosus!)

3) Tibicen pruinosus from parts of the mid-West can possess strongly bent costae! Please refer to the follwing paper for discussion on the idenification of T. linnei and separation of this species from other related species (i.e. T.pruinosus).

http://entnemdept.ufl.edu/walker/buzz/c700lb28.pdf
See page 226 for bend discussion!

yes