Male cicadas are well known for their “song”.  They rest on a tree and produce a whining sound to attract females.  The sound is produced by two vibrating membranes on the side of the abdomen.  Females do not “sing”. Adults feed on juices from tender twigs, but usually do not cause lasting harm to the plant from feeding.
 
For more information or help with identification, contact Wizzie Brown, Texas AgriLife Extension Service Program Specialist at 512.854.9600.  Check out my blog at http://www.urban-ipm.blogspot.com 
 
The information given herein is for educational purposes only.  Reference to commercial products or trade names is made with the understanding that no discrimination is intended and no endorsement by Texas AgriLife Extension Service or the Texas AgriLife Research is implied.
 
Extension programs serve people of all ages regardless of socioeconomic level, race, color, sex, religion, disability, or national origin.