There are three main frequencies found in ripple communication: 25 Hz as a repel signal, 10 Hz as a threat signal, and 3 Hz as a courtship signal. An approaching gerrid will first give out a repel signal to let the other water strider know they are in its area. If the other gerrid does not return the repel signal, then the bug knows it is a female and will switch to the courtship signal.
A nest of the large wood-chewing Camponotus ants, in a dead Banksia log. The large heavy jaws are ideal for the job of opening galleries in soft old logs. They can damage houses, but generally only parts that have already been damaged by moisture. They don’t eat wood, however, preferring honeydew and dead insects.
Hammond Park, Perth
As you can see, Carpenter Ants can be quite large.
A Carpenter Ant nest may have more than one fertile queen, but even though they’ll co-operate on brood care, they remain somewhat aggressive towards each other, especially if the other queen trespasses on her side of the room.