So wonderfully weird - what ecological niche is this filling?! @kasiaaus The cute little stripy-legged pink mite gadget visible in three of the pics respectfully requests its own sighting! :)
"Iād say first instar (meaning that they have just hatched and in their first stage of development). The brownish structure nearby is the egg batch that their mother laid, and which they hatched out of. They generally hang out together when young but become solitary as they mature," From ... https://au.news.yahoo.com/aussie-stunned-strange-backyard-find-insect-assassin-bug-061805254.html
