What sensory organs found on the underside of a solifuge's hind legs are considered analogues to structures found in scorpions?

Answer

Malleoli (racket organs)

Malleoli, or 'racket organs,' are fan-shaped chemoreceptors on the hind legs of camel spiders. They serve a similar sensory function to the pectines found on scorpions, representing parallel evolution.

What sensory organs found on the underside of a solifuge's hind legs are considered analogues to structures found in scorpions?
spideranimalarachnidscorpion