Arkys walckenaeri
Arkys walckenaeri, the triangular spider or Walckenaer's studded arkys, is a common Australian spider belonging to the family Arkyidae. A small ambush hunter with long curved forelegs and a narrow, triangular shaped abdomen, it is named in honour of Charles Athanase Walckenaer. References

Arkyidae
Spiders of Australia
Spiders described in 1879