The largest swarms so far created is the 1024 robot Kilobot swarm. Particle swarm optimization is another algorithm widely used to solve problems related to swarms. They form bands of wingless nymphs which later become swarms of winged adults. These nanobots, although evolved alongside the other swarms, do not show aggressive predatory behavior. The main antagonists are various swarms of alien arachnids called Glyphids. Bed bugs were so numerous that at night they often moved in swarms. Lake Malawi is famous for the huge swarms of tiny, harmless lake flies, "Chaoborus edulis". Firepower could be provided by swarms of missiles. This mite swarms its body and invades its respiratory cavity. Some bio-inspired flight swarms use steering behaviors and flocking. Quorum sensing can also be used to coordinate the behavior of autonomous robot swarms. Use cases include Internet of Things e.g. smart drone swarms. The group follows the body to find the swarms nesting in a cave. Motorists, usually, encounter swarms of these while driving during a four-week period. Dikes occur in very large individual swarms with particular compositions and orientations.