Well as you can see from the picture above Driders can appeasr humanoid from the torso up. Usually they are Drow though other forms have been seen as well. Driders can be either male or female with most of it depending on what they were before becoming a drider.

Natural born Driders in D&D apparently don't exist though outside of the "official" fandom there are some Driders than can reproduce.

While taurs are nothing new to Mythology Dungeons and Dragons have found some quite interesting versions including the Drider. Here is what the Wiki has to say on them. You might want to get a pillow :P.

Ecology

Only high-level priestesses in good standing with Lolth are able to initiate the transformation of a dark elf into a drider. This transformation is very painful, and lasts at least 12 hours. Driders develop a poisonous bite. Their digestion changes and they must drink blood of living creatures for sustenance.

Driders still maintain the spells and special abilities they had developed as a drow. Thus there can exist any character class of drider. They retain intelligence and memories. This usually makes them bitter, spiteful creatures. Some hunt for magic powerful enough to undo the transformation.

Environment

Driders are most commonly found in the Underdark.

Typical physical characteristics

Driders are centaur-like creatures, appearing as drow from the waist up, with their lower portions replaced by the abdomen and legs of immense spiders.

In previous editions, driders appear sexless due to bloating, but able to magically reproduce. Currently, in 3.5, driders seem to retain their gender and characteristics after the transformation, but fertility is debatable.

Alignment

Driders are always chaotic evil.

Society

Driders play many roles in drow society. The dark elves both fear and are revolted by driders. After transformation, they are usually pushed to the wild area around a drow city. Driders are usually found in company with tiny, huge and giant spiders.

Driders speak Common, Elvish, and Undercommon. In the first and second editions of the game, Driders spoke Drow.

Driders in Eberron (Campaign)

In the Eberron campaign setting, driders exist as creatures independent from the drow society. Because Vulkoor, the principle drow deity in Eberron, has an affinity for scorpions rather than spiders, the societal role occupied by driders in other settings is instead filled with the scorrow, a tauric race hybridizing drow with scorpions. Scorrow also replace the similarly centauroid scorpionfolk within the setting.

Everquest

The EverQuest creatures called drachnids are basically driders.

Drowtales

In the Drowtales universe, driders come in three "breeds":

* Ne'kalsaider - Civilized driders that were actually born as driders. From the waist up they are attractive drow, but have 4 pairs of red eyes, and fangs.

* Waelinder - Cursed newborn driders. At birth, they are sane yet neutered. They look like drow, except they have 7 eyes (the normal 2, a large central eye, and 4 crystal sized ones, all red) and no hope. Few survive and 99% of them go mad, alone in the tunnels.

* Streekaider - Wild driders who have fallen to madness. Their simple minds still remember the cruel treatment they received. They are some of the most dangerous creatures of the underdark. Even their upper halves become more spider-like at this stage.

There are various drider avatar in Second Life made by Hunter Stern. Hunter Stern also is founder of the inworld group in Second Life called "The High Council of Driders." Hunter Stern's driders are some of the most articulate multi-limbed avatars in Second Life ranging from 10 meters across to over 50 and 60 meters. You can see Stern's Driders at times lurking in the depths of the virtual online city of Nexus Prime most commonly mistaken as one of the many rumored 'Mutants' rumored to inhabit the lower levels of the roleplay-enhanced city.

There are also Driders that roam the City of Lost Angels, a dark RP that has several fantasy themed factions. The driders are part of the Faction called the Supernaturals and currently one of them, Speyeder Farina who is a Drider, is the group leader.

OK this is "Unofficial" aka stuff they won't let me post on Wikipedia :P, So before you come crying about it keep in mind this is something Me and a couple others came up with FOR OURSELVES.

There are currently Three types of Driders residing in the City of Lost Angels.

Hill driders:The Hill race of Drider actually was created by Lolth before the Drow. After seeing how well she had done she then tried her hand at "improving" the looks of the elves by creating the Drow. The Drow however being quite haughty hated the imperfection of the drider body and thus shunned them. This understandably pissed Lolth of who would've preferred the two races co-exist.

Lolth being quite devious then struck a bargin with the Drow. If they failed in any task she set them she would have every right to punish them. The most severe of these would be the Drow being magically altered so that their bodies would end upresembling the driders. This tended to drive the changed Drow insane as they were no longer a perfect being.

The drow after a while took the name for their own which suited the origionals just fine as they would rather live by themselves and the fearful reputaion kept a lot of snoopy people at bay.

The race of driders took the title of hill driders, they were often scouts and messangers between broods. Due to their smaller hieight and long legs they could move very quickly and cover distances faster than any other drider.

Eventually with elves either leaving the world or going into hiding due to the new race of humans the driders sent one of their own out to see if this new race had more sense than the elves.

Unfortunately their scout was killed. The driders emerged thinking the human race to be dangerous when in fact they were frightened. Deciding them not to be an immediate threat the driders again went underground, though once a century they send a scout to see how humanity has progressed.

As humans moved closer to the driders they found the fighting of them to be dangerous. It peaked when two warring clans tried to force the hill driders to fight for their armies. The hill driders ended up moving out late one night from their nests and settling in a large cave system where precious few humans ever go, and none return from.

Blood Driders:The next race to be created shortly after the Hill Driders was the Blood driders. This race of more bulky and more so 'moody' Driders Resembled something as a giant Black widow. Though this race was seen to produce smaller and less bulky Blood Driders, it was rare to see one that did not scare the bagebis out of most. For this reason they were more so classified as Demons on sight.

Being the middle race of the Driders, they were less seen. Thay had observed the goings on of the Hill Driders and the result of the Human uprising in the lands. For this reason and the eventual disapearance of the Hills, they too saught hiding aswell. The majority of the Blood Driders took to a place they called the pit. Here they set up colonies. These colonies resided farther into the core of the wolrd then the Hills, untouched by human hands.

The pit came to be there home for centuries even after the Hill Driders started sending up scouts. The Blood Driders eventually started sending out there own scouts. Though these scouts were few and rarely sent. Moreso to collect on food sources that did not already reside in the pit.

The time came finally when they did organize into a large group rather then seperate factions within the colonies. Soon there were more scouts deployed. They made it key for each scout to be that of a shapeshifter. Having taken four shifters in the previouse two centuries. This secured there ability to change forms at will, making it easier to harvest food on the surface. In tis time of century there would not have been a Blood Drider that could not hide it's true apearance. Though a good few clans shunned the idea of intercpesies mixing.

Not much more can be known in the current time of the Blood Driders. They have been hiden for well over a good hundred centuries now. There moods changing with the times, most now seen to be rather deviouse and short tempered.

Wild Driders:Next to be created are the Wild Driders, this race holding more of an exotic touch to them. Not much can be said for there own as they vary in species. Tiger Driders, Scorpion Driders, the list is unending. So it is for them to tell there own history as it may unravel.

There are rumors of Hydro Driders and Pyro Driders, but no information as of yet has been uncovered.