Fencepost jumper

Large species with flattened, elongate abdomen, thickly covered with light hairs. The ground colour is black but is usually mostly hidden by the dense hair coverage, unless the hairs have become rubbed off. The abdomen is usually whitish with a black median and some angulate, chevronlike black lines. Females reach about 8–13 mm length, males only 6–8 mm. The species builds a kind of nest under the bark of dead trees. Up to 100 of these nests can occur side by side. This spider has a hierarchy: weaker animals will show their inferiority by strutting their front legs and slowly receding from the scene.