This video highlights the various stages of courtship and mating:
1) The male calls several times and then flies to a different perch in search of a female; his harsh, nasal call sounds like weeeee-ah ... weeeee-ah ... weeeee-ah
2) By chance, the male lands near a female and the female flicks her wings (making an audible click) in response to each of his songs
3) Hearing the female's wing clicks, the male heads in her direction, his calls becoming more excited as he gets closer to her.
4) When the male makes contact with the female, he begins slurring his calls together: weee-ah-weee-ah-weee-ah-weee-ah
5) The male stimulates the female by raising a foreleg and shaking it rapidly as he drags it across her head or wings; at the same time he begins an excited series of staccato buzzy notes: zzt-zzt-zzt-zzt-zzt-zzt-zzt ....
6) The male continues making buzz calls until he has maneuvered into a position where he can bring his genitals into contact with the female's genitals (genitals are located at the tip of the abdomen).
7) The copulating pair remain perched and (usually) facing in opposite directions; it is generally very difficult for a competing male to unseat a male who is firmly attached to his mate.
NOTE: This video footage was gathered by Lang Elliott in May of 2012 near Lexington, Virginia, during the Brood 1 emergence. The mating sequence was captured with the help of cicada researcher John Cooley of magicicada.org