How many insects are there in the world?

How many insects are there in the world?

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By Sarah Romero

How many insects are there in the world? Insects are undoubtedlythe most abundant group of living things on Earth; not in vain,there are more than a million species described by science(and many yet to discover). This number will probably rise to several million species in the future as we discover these new species (something that we have already seen happens frequently).

TheRoyal Entomological Societyof London, United Kingdom (founded in 1833), an organization dedicated to the study of insects and the dissemination of information about them, carried out a study by which they calculated thaton the earth's surface there are about 10,000 million insects per square kilometer.

In Spain it is estimated that the number of existing insect species amounts to40.000.

The most abundant primitive insects

The most abundant worldwide are theCollembola (probably the most numerous animals on earth -and also the oldest terrestrial animals-, since we can find up to 62,000 insects per square meter), the proturs (small and hardly observable insects, of which about 500 species are known), thediplomas (frequent arthropods of the soil biota that receive this name that means 'double tail' because of two fences located at the end of their body; of these hexapod arthropods some 800 species are known), thearchaeognathsor copper minnows (primitive insects with an elongated shape, with three 'tails' at the end of the abdomen and a body covered by scales with metallic reflections, of which there are about 350 species) andthe silverfish (trace or sardinette, an agile insect, that flees from the light and its name derives from the metallic gray shine of its body -as with the archaeognaths-; these little silver fish feed on vegetable matter such as mold, paper, paper, cardboard or book binding glue).

The most abundant insects (with complete metamorphosis)

The beetles (coleoptera), bees, wasps, ants (hymenoptera), butterflies, moths (lepidoptera), flies, mosquitoes (diptera) and thehemiptera(Among which are aphids, cicadas and bed bugs) are, in this order from highest to lowest, the most abundant insects on our planet.


Mosquitoes -how annoying they are to us and they transmit so many diseases because they are the most dangerous invasive species in the world-they occupy the entire planet except Antarctica.

Video: Why Are There So Many Species Of Insects? (May 2022).