Much better footage of an eye spider demon was captured, after pulling one from a crop of hairs off the back of my hand.
In this video, the decloaked leg of an eye spider demon flails between my fingers, right before vanishing into thin air:
An eye spider demon looks similar to a daddy-long-leg spider, but without the joints in the legs and without any visible midsection (rather, it appears that the hair-like legs, which are curled just like arm hair when resting, simply meet at a single point.