Quick update, and some good news.
As of putting them back on the heat mat, their brood pile has grown immensely and they are eating almost everything I put in their outworld. As of now they have two majors, ~130-140 workers, with 4 major pupae and several dozen worker pupae.
~One week previous to the date of posting this:
(Sorry for the spots of sand on the glass obstructing the view, it’s a consequence of heating the nest.)
They have actually raised a male to pupation, previously male larvae were not cared for and ended up kind of deflated... almost like a pancake or something. Right now I assume it’s about a week from eclosing, and from why I’ve seen I don’t think they are going to eat it. Hopefully they don’t eat it, and I’ll be able to take pictures.
Males can pop up frequently in smaller colonies from trophic eggs, an infertile egg laid solely for the purposes of nutrition, and reared by the workers unknowingly. Usually by the time it exceeds the size of a worker larvae it is either abandoned or directly eaten.