If so, I beg on bended knee for y'all to remember: just because it's an arthropod doesn't mean it needs to have a queen. Only ants, wasps, bees, termites, a couple of types of shrimps, and two types of mole rats have a eusocial structure.
Sorry, but this has always been a major pet peeve of mine, and I wept bitter tears* when I saw that the ankheg has been turned into such a creature instead of remaining as a gloriously non-social monstrous chilopods. It's as bad as when 3e (or maybe Pathfinder, can't remember) had eusocial spiders. "Queen" ankhegs shall simply be giant mutant ankhegs for me.