I have to ask, but over the latest D&D session I noticed that driders in 5E not only can't innately spin webs (in a defined manner; nothing suggests they couldn't do it as a non-combat action) but they don't even get web as a spell option. Perplexed, I set out to figure out if this was normal or not, for D&D in general....everyone in my group remembers driders being able to use webs in some form or another. Here's what I found:
4E: they had a sticky web attack by the looks of it. At least, one drider stat block did for sure.
3E: they could cast web if you used the sorcerer spell options, but it was not innate.
Pathfinder: They did indeed gain a basic web attack, although in the time-honored tradition of 3.X stat blocks it doesn't define what it does within the actual stat block (but one can infer it requires cutting at it to reduce the HP total).
2E: Nope, apparently they have a paralytic bite at this stage but no innate webbing details. Eerie....
1E: The MMII defines them with the poison bite but again no web attacks, outside of any spells the DM might grant them.
Interesting....I have for 5E at least declared that yes, driders can spin webs, but no, not fast enough to make a difference in direct combat. It kind of makes more sense that they retain a paralytic bite (currently their bite only deals additional poison damage) and I rather like the idea that they both paralyze their prey and inject necrotizing poison at the same time. Then they can truss them up in cocoons at their leisure while they wait for the victim to liquefy.
...and now for some cool drider picks I found: