Idiosoma nigrum Main, 1952, female holotype (WAM T3960) from Wongan Hills (Western Australia; AVW). 39–40 Carapace and abdomen, dorsal view 41 Carapace, lateral view 42 Eyes, dorsal view 43 Abdomen, posterior view 44 Sternum, ventral view 45 Leg I, prolateral view 46 Leg I, retrolateral view 47 Spermathecae, dorsal view. Scale bars 2.0 (39–40, 45–46), 0.5 (47). SP3–4 = sigilla pairs 3–4.

 
 
  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