Many are on the ground or under material on the ground. Different kinds can be found on vegetation, in rotting wood or plants, in carrion, fungi, and dung. Some are aquatic, living in bodies of water that range from small puddles to cold mountain streams, and a few are parasitic. They are found in dry deserts and in the cold temperatures of mountain tops. Benefits of beetles.
Beetles are of value to humans in many ways.
They are prominent decomposers, especially in forests. As predators, they reduce populations of problem insects, especially caterpillars. Ladybird beetles are widely known to be important predators of aphids, and can be purchased commercially for this purpose. Detriments of beetles. A small percentage of beetles can be said to be harmful to products of humans.