Roy Troutman sent us these amazing photos of a female Walker’s Cicada aka Megatibicen pronotalis (aka T. walkeri, T. marginalis) taken in Batavia, Ohio. As you can guess by the various akas (also known as), the Megatibicen pronotalis has been known by several species names in the past. Sometimes it takes cicada researchers a while to figure out that two different species are the same species (which is probably the case here). Tibicen pronotalis also sounds exactly like another species of Tibicen: Megatibicen dealbatus. The major difference between the M. pronotalis and the M. dealbatus is the M. dealbatus has more pruinose than the M. pronotalis. Pruinose is the white, chalky substance that appears on the bodies of cicadas.