Hunter x Hunter (2011) - episode 98 - 28 Sep, 2013

Once inside East Gorteau, Gon and Killua take separate ways in preparation for the attack on the palace, but once alone, it does not take long for Gon to be attacked by Ants sent by Meleoron, whose presence is concealed thanks to his chameleon-like powers. (Source: Wikipedia) Chimera Ant arc: (23/61)