I read of a similar parasite (Dicrocoelium dendriticum) that lives in the bovine GI system, and when its eggs exit they are picked up by snails, who protect their own GI system by coating the eggs (lancet flukes) with mucus. When they exit the snail, the mucus makes them (little pearls) irresistible to ants, who ingest them. The following day they all head off to work, but in the evening when it gets cooler the infected members don't go back to the colony, but wander off and climb as high as they can get on a blade of grass, and then clamp their mandibles permanently to the top of the grass. They have lost their 'minds' by now and will end their lives in this position.

There they are certain to be eaten by a bovine, and the magic circle of life continues........