I have now eliminated the termite colony in the wardrobe, which I've been baiting for a few months. When we see this kind of mudding in a house, it is usually just mud-packing, but the nest housing the queen is usually further away from the house.
In this case, once I removed the mudding & the computer it had engulfed [See fig 4] you can clearly see in fig 2, the loose material in the centre, with concentric circles of mudding. This indicates that this was in fact a termite nest, with the queen residing in this central chamber.
Proof of colony elimination can be seen in fig 3. Here we see clusters of dead soldier termites. Many of them have deformed exoskeletons & some have heads without bodies. These are classic signs of the effects of a baiting treatment. Thousands of termites ingest the bait & distribute it throughout the colony. The bait is a chitin inhibitor, which interferes with the moulting process, leading to elimination of the entire colony.