(Get it? Because the ones I'm talking about are bosses? Anyway.)
So...
I've tamed Lord Kri, and later plan on eventually taming the other two members of the Bug Family, and I've also tamed Buru the Gorger (hey, might as well do SOMETHING with all these new pet slots, right)? Plus the Colossus model is awesome (when undamaged).
Not a clue what I could call them, though...