Scorpions are non-insect arthropods. Body color of adults varies from yellowish to tan, marked with two broad, blackish stripes on the upper surface of the abdomen. Populations in the Big Bend area may be only faintly marked or completely pale. The key recognition characters for this species are the slender pedipalps and the long slender tail.
Scorpions are capable of reducing their metabolic rates to very low levels.
Mating apparently takes place in the fall, spring and early summer. Young are born in litter sizes from 13 to 47, averaging about 31. The young climb to the mother s back after birth and soon molt. After the first molt they disperse to lead independent lives. Immature scorpions molt an average of six times before maturity.