After a few generations, a last brood of non-working females and males emerge. In this case, behavioral dominance controlled reproduction and enforced altruism. Given haplodiploidy and coefficients or relatedness, this could lead to Eusociality. Females induce plants to form protective galls. Before then, vulnerable to predation.
First offspring are soldiers with jaws and spiny legs.
In this case, the soldiers are clones of the mother produced asexually through parthenogenesis. Not all eusocial insects are haplo-diploid. Termites are diploid, yet are just as eusocial. Weird ring chromosomes that may make higher than expected coefficients of relatedness, but answer more likely to be found in ecology. A. Limited opportunities for Dispersal B. Defendable space and ability to defend it.