Hey Skippy,
when you look up Stuff on Pheidole sp, youll find most topics dealing with how to keep them from escaping;) Scooby, who visits this Forum every now and then too, spent a lot of time keeping differen Pheidole sp. His advise is a totally closed glasslid or a very smallscaled,very strong steelnet, but beware from little gaps between tank and lid, they will try to use any weak point in the setup. They are also said to be able to bite through a lot of materials.
All this makes them pretty complicated in my eyes. Pheidologeton diversus are still very annoying when it comes to keeping them inside the tank, but at least they are giants compared to Pheidole sp.
Makes it a bit easier.
Necturus