I have a couple of Ts that burrow, or did as slings. I always knew they were alive as their burrows were well maintained, i.e. the entrance was always neat, and it looked as if someone was home and well. So I never bothered my Ts at all.
This weekend I did something I vowed I would never do. I have 2 H Incei in a communal set up - there were 4, but 2 disappeared. I never saw them, but their burrows looked fine, and all crics I would put intheir disappeared regularly.
In the last month or so I noticed no maintenance on any of the burrow entrances, they were open but it really looked as if there were no Ts living there. The crics dies of old age, and not from falling prey to any beasts. So, I dug up the burrows.
I know, I know, I shouldn't have.
And what did I find? 2 rediculously fat, gorgeous Spiders, alive and well!
I should have left them. If one was mid-molt, I could have killed it. I am also not suggesting that this should be done at all, and I won't do this in a hurry again.