Brachaspis robustus is an endangered protected species of grasshopper from South Island, New Zealand. Two species of grasshoppers are listed for protection under the Wildlife Act 1953 of New Zealand this include B. robustus and Sigaus childi. Sigaus takahe is also protection under the Wildlife Act 1953 indirectly as it is only known from the Murchison Mountains Specially Protected (Takahē) Area.