These wings are shed after mating. Only kings and queens develop into adults for mating. Adult kings and queens are darker. Queen is enormously enlarged.
Wings extend beyond the body.
Make sure foundation is at least 25 cm above ground level. Use pressure treated fence posts. Use Home Pest Insect Control in areas where they congregate. When using pesticides always read the entire label on the container and follow the directions. Damage is done by workers and nymphs.