Pedipalps, pincers or claws of the Indian common scorpion

Some believe these were originally legs that were modified during evolution. They are made of up of six segments. The chela (pincer) itself consists of the upper fixed finger (tibia) and the lower movable finger (tarsus). The pincers' size is highly dependent on the species; however, a general trend is that the more venomous the scorpion, the narrower the pincers, as scorpions with less potent venom use their larger pincers to subdue prey.
The pedipalps are used primarily for prey capture but also play an important part in the scorpion mating dance. The pedipalps are covered with trichobothria, sensory setae, that sense air-borne vibrations.