Ansienulina mirabilis is a species of jumping spiders. It is the only species in the genus Ansienulina.[1]
A. mirabilis has been discovered in Angola, Kenya and Namibia.[1] It probably lives on the ground in tree-covered areas.[2]
A. mirabilis was first described by Wanda Wesołowska in 2015.[1] The species is the same or similar to an example of Eustiromastix major identified by Eugène Simon in 1903.[2]
The spider is very small, with a cephalothorax that measures between 1.5mm2.1mm long and an abdomen between 1.3mm2.1mm long. The male spider is dark yellow to light brown, while the female has an orange-brown carapace and greyish beige abdomen, with Kenyan examples being generally darker.[2]