Missulena iugum

Missulena iugum is a species of mouse spider in the Actinopodidae family. It is endemic to Australia. It was described in 2021, with the specific epithet iugum (Latin for ‘ridge’) referring to the strongly ridged cheliceral groove of the male spiders.

Distribution and habitat
The species is found in the Murchison IBRA bioregion of Western Australia. The holotype specimen was obtained in Acacia shrubland.