-The larva of a Keroplatidae species, Arachnocampa luminosa, is responsible for enchanting and deadly fairy light displays in the caves of Australia and New Zealand (media: silk and bioluminescence :)
Here they are:
https://www.inaturalist.org/observations?place_id=any&project_id=arthropod&subview=grid&taxon_id=125921&verifiable=any

-Meanwhile, in Chile, user @ieremiel has posted a GIF of a predatory fungus gnat larva at work, weaving:
https://www.inaturalist.org/observations/42130455

-Furthermore, one of my favorite ARThropod observation by @epopov has been identified (tentatively as these things are) as the pupa of Mycetophilidae (Fungus gnat):
https://www.inaturalist.org/observations/38438969

*Bonus: as I was looking into gnat larvae, I came across this macro photo blog by Andy Murray with amazing shots of the very festive and astonishing larvae of Forcipomyia, a member of Ceratopogonidae (Biting Midges ) and many other critters:
https://www.chaosofdelight.org/forcipomyia

Happy August and fruitful observing!