WP12967 Leaf-cutting ants or Bachacs (Atta cephalotes) carrying sections of cocoa leaf bearing 'riders' thought to ward off parasitic flies which would otherwise lay their eggs on the pieces of leaf.  South America.

WP12967 Leaf-cutting ants or Bachacs (Atta cephalotes) carrying sections of cocoa leaf bearing 'riders' thought to ward off parasitic flies which would otherwise lay their eggs on the pieces of leaf.  South America.