I've now followed it up with an equivalent entry on true flies (Diptera) which wound up easily ten times weirder. Flies are INSANE!
What you're looking at here, for example, is a wingless and legless adult fly among the army ant larvae it imitates.
Here we have another wingless fly, a blood-sucking parasite of bats.
This small-headed fly is a parasitoid of spiders. Flies eating spiders, cats and dogs living together, mass hysteria!