Idiosoma nigrum Main, 1952, male (WAM T3301) from Walk Walkin, via Koorda (Western Australia; AVW), somatic morphology. 26–27 Carapace and abdomen, dorsal view 28 Carapace, lateral view 29 Eyes, dorsal view 30 Mouthparts, ventral view 31 Sternum, ventral view 32 Abdomen, posterior view 33 Leg I, prolateral view 34 Leg I tibia, clasping spurs, prolateral view (note loss of clasping spur macroseta) 35 Leg I tibia, proventral view. Scale bars 2.0. SP2–4 = sigilla pairs 2–4.

 
 
  Part of: Rix MG, Huey JA, Cooper SJB, Austin AD, Harvey MS (2018) Conservation systematics of the shield-backed trapdoor spiders of the nigrum-group (Mygalomorphae, Idiopidae, Idiosoma): integrative taxonomy reveals a diverse and threatened fauna from south-western Australia. ZooKeys 756: 1-121. https://doi.org/10.3897/zookeys.756.24397