I saw a cicada by itself crawling slowly across the path in Foss park, on the evening of August 26 . I did not think to take a photograph of it.
Maybe Z luridus, though I don't see the spines. Looks like this one on BG, though: http://bugguide.net/node/view/1228823/bgimage
This one looked like it was waiting to hitch a ride.
ID'd by Wil Hershberger " black pronotum gives it away" ...Neotibicen tibicen tibicen.
Hemiptera /hɛˈmɪptərə/ is an order of insects most often known as the true bugs (cf. bug), comprising around 50,000–80,000 species of cicadas, aphids, planthoppers, leafhoppers, shield bugs, and others. They range in size from 1 mm (0.04 in) to around 15 cm (6 in), and share a common arrangement of sucking mouthparts. Sometimes, the name true bugs is applied more narrowly still to insects of the suborder Heteroptera only.