Brian Baldwin sent over some cicada photos for an ID. Here’s my guesses (below). If you have a more accurate guess, post it in the Comments.
Megatibicen dorsatus (formerly T. dorsata):
At first I thought T. walkeri, but now I’m leaning towards Brain’s guess of N. superbus. This would be the first superbus with a brown mesonotum that I’ve ever seen.:
Megatibicen dealbatus (formerly dealbata):
I saw a large black and white Cicada in Washington DC. Ive never seen one like that here before. -Rit
The top animal is Tibicen dorsatus (Say, 1825). The middle animal is Tibicen superbus (Fitch, 1855). The green coloration of cicadas often fades to brown after death. The bottom animal is Tibicen dealbatus (Davis, 1915).
#2 sure looks like superba. I have a photo of a brown specimen collected this season in my photo folder in Entomology-Cicadidae at yahoogroups. Unusual, but not unheard of.