Idiosoma arenaceum
Idiosoma arenaceum is a trapdoor spider in the Arbanitinae subfamily of the Idiopidae family. It was first described in 2018 by Michael G. Rix, Mark Harvey and others. It is found in the Geraldton sandplains of Western Australia. References

arenaceum
Spiders of Australia
Arthropods of Western Australia
Spiders described in 2018
Taxa named by Michael G. Rix
Taxa named by Mark Harvey