Monocentropus is a genus of tarantulas that was first described by Reginald Innes Pocock in 1897. As of March 2020 it contains three species, found on Madagascar and in Yemen: M. balfouri, M. lambertoni, and M. longimanus. From Wikipedia
Researchers propose that males’ record-length palps evolved as an adaptation to minimize the risk of fatal female aggression during mating.
