Zombie bees are increasing in US neighborhoods. There are many theories trying to explain the disappearance of honeybees worldwide, but now scientists have identified a new threat. A biology professor from San Francisco State University in California noticed piles of dead bees under lights on campus, and took them to his lab to study. After forgetting about them for a few days, he then found that the dead bees were hatching fly pupae from inside. It turns out that a parasitic fly lays its eggs in the body of a honey bee, which leaves the hive several nights later and flies toward a light source. When they reach the light source, they then hatch up to 13 baby flies. The flys in turn go out and find another bees to lay their eggs in. Researchers discovered that over 75 percent of the bees in the area that they studied were hosts to the parasite.
The Phorid, a parasitic fly is wrecking havoc on the bee population.