Phalangium is a genus of harvestmen, that occurs mostly in the Old World. The best known species is Phalangium opilio, which is so common in many temperate regions that it is simply called `harvestman`. The genus Phalangium contains the following species: ==Valid species (as of 2014)== Source Of the 35 species listed above, 6 are valid [P. ligus..... Found on http://en.wikipedia.org/wiki/Phalangium