These wasps are tiny parasitoids that target the eggs of over 200 insect species. Adults are typically less than 1 mm in length.
While not as small as the others listed here, it's worth mentioning as the smallest butterfly in the world, with a wingspan of just over 1.5 cm.
These beetles are among the smallest in the world, with some species measuring as little as 0.5 mm. They are named for their feather-like wings.
The smallest known beetle, Scydosella Musawasensis is also the smallest free-living insect, measuring around 0.325 mm in length.
These wasps are interesting because, despite their tiny size, their bodies contain a highly reduced number of cells.
This parasitic wasp is incredibly tiny, with males reaching only about 0.17 mm in length.
Fairyflies are a type of chalcid wasp and are among the world's smallest insects, with some species measuring just 0.139 mm in length.