Imagine being so teeny tiny that you are an endoparasite on *leafhoppers*
Leafhoppers are already in the "so small they go unnoticed" category, and you're just a little pest on a minuscule thing.
Of course the group that's most likely to choose this life? The wasps.
Wasps are some of the smallest insects. There are "fairy flies" that are parasites of the eggs of certain insects.
They are so small that air is "thick" to them and their wings have feathered edges are are oar shaped.