The male is recorded at 7.4-11.7mm in length whereas the female is 8.2-15.8mm. The carapace is coloured orange brown and has blackish markings that originate from the fovea. The legs are orange brown with faint dark bands. The abdomen is dark grey, has light yellow blotches dorsally and a yellow orange heart stripe that is more dull in females.
Distribution/habitat
It is widespread throughout New Zealand south of 37°S, including on Stewart Island. They occur on alluvial river beds and hunt at night. The adults occur all year round but are most common December to January.