Wings of fairy flies allow them to move in relatively viscous solutions by being feathery rather than solid structures.

References

"It's a whole solar-powered flotilla, majestic in the soaring hot air currents…And there are breast-stroke straining fairy flies--creatures so small that ordinary garden air is as thick as water to them, and they maneuver in the up-blast not with wings, but with sticking-out feathery oars." (Bodanis 1992: 119)

Book
The Secret Garden: Dawn to Dusk in the Astonishing Hidden World of the GardenSimon & SchusterNovember 1, 1992
David Bodanis

Living System/s

Organism
FrevilleaGenus

Organism
Parasitic HymenopteraHymenopteraSuperfamily

Organism
FairyflyMymaridaeFamily