White ants are found in the tropical and warm temperate countries of the world, white ants are colonial, polymorphic and social insects. Bed bugs are usually found in crevices of cots and under the mattresses. They are nocturnal. They also come out during day. Sometimes, they show cannibalism. Locusts are found in greatest abundance in places with open grasslands and abundant leafy vegetation, where there is plenty of food and place to breed. The migratory locust are particularly cosmopolitan in distribution. The mosquitoes are found all over the world. They are nocturnal. They emit buzzing sound.