Ron Wolford our Chicago Master Gardener man in charge, has been documenting the cicada emergence.
Ron Wolford extension uiuc
I found these pictures of cicadas there from a man in Lagrange. That is where I saw swarms of cicadas (even having one land on my arm so that we could get a really close look) and heard the constant thrum in the air.
Take a look at the last picture on page one (there are 36 pictures over 4 pages) of the branch covered with cicadas and the one on page two of a cicada molting its outer covering as it grows.
Pictures of cicadas from the front lines
Finally a few tips as to disposal of the piles of dead cicadas.
17 uses for dead cicadas
14) Collect some floral foam and branches and make a summer centerpiece for your table. Glue cicadas to plastic picks and pop them in. Watch your dinner guests jump in surprise when they spot them during the appetizer course
16) Decorate your cheap flip-flops by attaching cicadas with hot glue for a customized pair of summer 2007 sandals.