Termite biology is simple: 

Here a late instar pseudergate engaging in grooming to a nympoid secondary reproductive, right next to larvae and younger pseudergate. This is Neotermes castanets, they have a linear development pathways, so it's very simple. 

Right?

https://cdn.masto.host/ecoevosocial/media_attachments/files/111/074/053/603/202/728/original/2e919d3b1d10874b.jpeg