If you add the Greensting Scorpion as a familiar for a Wizard, it gets added as a vermin instead of vermin (intelligent). According to Beastiary 4, page 232 under the greensting scorpion "A greensting scorpion familiar loses the mindless trait and has an Intelligence score appropriate for its master's level." Right now the familiar has a * for Intelligence. The Bat and Blue-Ringed Octopus familiars (animals) do not have this problem, but the House Centipede (vermin) does. I am guessing it is related to vermin familiars.