Entomophagy (/ˌɛntəˈmɒfədʒi/, from Greek éntomon, "insect", and phagein, "to eat") is the human use of insects as food. The eggs, larvae, pupae, and adults of certain insects have been eaten by humans from prehistoric times to the present day.
Human insect-eating is common to cultures in most parts of the world, including North, Central, and South America; and Africa, Asia, Australia, and New Zealand. Over 1,000 species of insects are known to be eaten in 80% of the world's nations. The total number of ethnic groups recorded to practice entomophagy is around 3,000. However, in some societies insect-eating is uncommon or even taboo. Today insect eating is rare in the developed world, but insects remain a popular food in many regions of Latin America, Africa, Asia, and Oceania. Some companies are trying to introduce insects into Western diets.FAO has registered some 1900 edible insect species and estimates there were in 2005 some 2 billion insect consumers worldwide. They also suggest entomophagy should be considered as a solution to environmental pollution.
Entomophagy is sometimes defined broadly to cover the eating of arthropods other than insects, including arachnids and myriapods. Insects and arachnids eaten around the world include crickets, cicadas, grasshoppers, ants, various beetle grubs (such as mealworms), the larvae of the darkling beetle or rhinoceros beetle, various species of caterpillar (such as bamboo worms, mopani worms, silkworms and waxworms), scorpions and tarantulas. There are over 1,900 known species of arthropods that are edible to humans.