Posted on 11 September 2015 by David Daddy long-legs spider Not to be confused with a daddy long-legs, which is an insect (six legs, wings which are used to fly around in a seemingly random manner), but a spider often found indoors. Also known as a cellar spider or formally as Pholcus phalangioides. Post navigationPrevious post: Haws on a lichen-encrusted twigNext post: Harvestman: still not a daddy long-legs