Arbanitis montanus is a species of armoured trap-door spider in the family Idiopidae, and is endemic to New South Wales.[1]
It was first described by William Joseph Rainbow and Robert Henry Pulleine in 1918 as Arbanitis montanus.[2] However, in 1977 Barbara Main placed it in synonymy with Dyarcyops fuscipes and in 1985 in synonymy with Misgolas rapax. In 2008, Wishart and Rowell recognised it once more as a separate species and it became Misgolas montanus. This was reconfirmed by Wishart in 2011. In 2017 Michael Rix and others returned it to the genus, Arbanitis.[2]