Landcare Research - Manaaki Whenua

Landcare-Research -Manaaki Whenua

Fairy flies

"Fairy flies" are some of the smallest insects in the world.
  • There are about 160 species in New Zealand, about 10% of the world's known species.
  • Fairy flies are not true flies (Diptera) but actually tiny mymarid wasps (Hymenoptera), which lay their eggs in the eggs of other insects.
  • All the young stages of the mymarid develop within the host egg, and hatch as adults from the host eggs.
  • Some fairy flies are less than 0.4 mm long.