Dr. Hamilton,

I agree this cicada has a wide head, however, Floridian Diceroprocta spp. can be characterized by "wide heads". Head width in both D. olympusa and D. biconica can equate and/or slightly exceed the width of the pronotum. Another aspect of both D. olympusa and D. biconica that can be confusing is the presence of the "Z" infuscation of the forewings, typical of Tibicen species, but often absent in other Diceroprocta species.

D. olympusa images
http://bugguide.net/node/view/136999/bgimage

When I look at this image I notice a few things that are less typical of davisi and more so of D. olympusa.

1) Long wings relative to body
2) Lack of smoky infuscation along the apical wing veins of the forewings giving these veins a heavier black appearance (esp. in Floridian material)
3) A tendency towards a dorso-ventrally flattened appearance ("flat back")

Having spent a significant portion of my life in central Florida, I have an intimate familiarity with the cicadas of that immediate region and am not comfortable with T. davisi as the id for the cicada in this pic.

Brightening up the dark areas in the picture with photoshop helps in the decision.

Paul,

I appreciate the update, picture improvement and commentary.

thanks,
bill

i agree with bill on this cicada because i live in central florida and have been collecting cicadas for many years and i agree that this is a d. olympusa

Ronnie,

You agree this is likely D. olympusa?
It doesn't look like any T. davisi I have seen in Florida or elsewhere for that matter,...but does mesh well with D. olympusa.

I'd appreciate it if you'd take one more look at this image and get back with me.

Thanks,
bill