Cleon
Legend
I'd go with the increased abilities, too, and Monstrous Humanoid makes good sense to me.
I'll stick those stats in with the next update.
I also like a "king"/secondary breeder, though I do think the normal queen should be mildly mobile, leaving the immobile one as an advanced form.
I was thinking the "basic queen" and the "secondary queens" would use the same monster entry - since they are the same creature! - but most Isopterite colonies will be led by a Queen who's advanced to Colossal size and become immobile.
I was thinking we'd base the social structure on real-life termites, something like:
There'll only be one Queen per colony, but there'll probably be a number of secondary queens. If the Queen dies, the Hive Mind will go down until one of the secondaries can re-establish it (which probably requires her to kill or banish the other secondary queens). If there are no secondary queens, then either a "nymph" or a female worker will develop into a queen, but this would take a lot longer.