<prompt> The following are DDT resistant except -PhlebotomusCulex fatigansAnopheles stephenciMusca domestica  <response>: Resistance to DDT has not been demonstrated in Phlebotomus. Organochloride resistance is divided into Resistance to DDT and analogues Resistance to HCH-Dieldrin group of insecticides Parks Textbook of Preventive and Social Medicine, 25th Edition, Pg 845 