Not a genus. A subfamily, and this page exists because a substantial volume of the Southeast Asian trade moves under subfamily-level labels rather than under any genus name.
That is worth understanding. When a vendor lists an animal as Ornithoctoninae sp. plus a locality, they are saying it is a Southeast Asian earth tiger and they do not know which genus it belongs in. Sometimes that is honesty. Sometimes it is a placeholder that will resolve into Cyriopagopus, Omothymus, Phormingochilus or Ornithoctonus once someone does the work.
Husbandry across the group is consistent: fossorial or arboreal depending on species, fast, old world, defensive, with venom that warrants respect. Prices on subfamily-level listings are volatile precisely because nobody knows what they are buying, and they can move sharply when a form gets formally placed.