Moved from Cicadas.

This cicada is commonly called the "Northern Dusk Singing Cicada", (a.k.a. "Grand Dusk Singing Cicada" or "Great Oak Cicada").

Despite the more widely accepted common name, this species is far more common here in the South and quite abundant in Alabama.

This is the largest Tibicen sp. here in the US (often 2.5" to 3" in total length incl. wings) and easily identified by the extreme pruinosity or white powdery appearance, and light eyes. Most individuals are greenish and covered by this silvery white dusting - as seen here. There is a less common color form which is more of a reddish color and closely resembles T. resonans. However, the closely related T. resonans, which also occurs in your area, is slightly smaller and lacks much of the pruinosity seen in auletes.

The Southern Dog-day cicada, T. davisi is a much smaller insect (usu. 1.5" incl. wings) and usu. associated with pines.