If the body of the insect rotates about one of its three axes (yaw, pitch or roll), the rotation exerts a force on the vibrating halteres, known as the Coriolis effect (see below).
If the body of the insect changes direction in flight or rotates about one of its three axes (yaw, pitch or roll), the rotation exerts a force on the vibrating halteres. This is known as the Coriolis effect (see below).