[1] Females of the genus Pasilobus construct "spanning-thread webs" with only two sectors, making them appear triangular.

Widely spaced threads with sticky drops span the three radii of these webs.

Overall, the body is dark reddish brown, with the carapace and sternum being darker than the abdomen.

The conductor of the palpal bulb wraps around the apex of the embolus and the median apophysis is hook-shaped.

The specific name hupingensis is based on the type locality, Mount Huping in Shimen County.