I wanted to check out the new design of spider pits, but I couldn't find a single one in Dol Guldur (Biome). The same happenes with warg pits in Angmar (Biome).
Aren't there any supposed to be any more? I use mod version 35.3.
I found a notice in the changelog, that there was a bug fixed concerning that topic. Perhaps not completely fixed or reintroduced?