Dorymyrmex bicolor is a species of ant in the Dolichoderinae subfamily. Dorymyrmex bicolor was recently known as Conomyrma bicolor but has been renamed to Dorymyrmex bicolor. Dorymyrmex bicolor has a single petiole and a slit-like orifice which releases chemical compounds. This ant does not have the capability to sting.
Quite a large individual. No idea about the species. Could not get more information.
Eating leaves of lilies. May be Lilioceris merdigera or Lilioceris lilii. It has a red head.