Are you a Tarantula hobbyist? If so, we invite you to join our community! Once you join you'll be able to post messages, upload pictures of your pets and enclosures and chat with other Tarantula enthusiasts. Sign up today!
I am not sure if helps or not. But one of my Brachypelma Hamorii came from someone moving from the UK to the US. He said he could not take it due to CITES. If I remember correctly she, the T, could not leave the UK or enter the US without the correct paperwork & that could not be acquired...
It may be tarantula poop, or it could be that he needs to wipe his face after a meal. But normally it is nothing to worry about. If it were damp, foam like, then that would be a concern. But it looks dry & harmless, although I am not sure of what it is.
Good morning Dianna & welcome to the forum. I have a small colony of Gromphadorhina portentosa, hissers & a another colony of Archimandrita tessellata, pepperd roaches.