Small South American burrowers, and a genus that has been carved up repeatedly, with most of the hobby-relevant species now sitting in Neoholothele. What remains under Holothele is a smaller and less traded group.
Dwarf to small, heavy webbers, fossorial, and forgiving. The husbandry is the same across the whole cluster of related genera and none of it is demanding.
The reason to read this page is the naming. Because species moved out to Neoholothele, listings under the old genus name frequently describe animals that formally belong elsewhere, and those listings tend to sit below market simply because buyers search the current name. That gap is real and it is checkable here.