Some spiders also use pheromones to hunt. One species changes their pheromones to attract moths. Yeah you could basically bring in the Others powers like the stingers, night vision, communication with spiders. I personally hope one these spiders will bring the Queen into the Ultimate Universe.
Exoskeleton sounds pretty good to me, and stinger barbs made out of body hair would be an interesting one, too. As for trapdoor spider-style "teleporting," I could see that working as dramatically enhanced speed to the point of fading in and out of sight like Albert Wesker in Resident Evil 5 to startle and ambush opponents.
Back in black, the hunter is ready to claim his prey.