Where do insects lay their eggs?

In soil, on plants, in and on animal bodies, and in water. The place varies with the kind of insect. But each place supplies food to the insects that hatch from the eggs. For example, the female horse botfly sticks her eggs to hairs on a horse’s legs. The horse licks off the eggs. The eggs hatch and the young insects, called maggots, start to grow inside the horse’s stomach!