Fly parasite turns honeybees into zom-bees

If deadly viruses and fungi weren't enough, honeybees in North America now must also deal with a fly parasite that causes them to leave their hive and die after wandering about in a zombie-like stupor, a new study shows.

Scientists previously found that the parasitic fly, Apocephalus borealis, infects and ultimately kills bumblebees and paper wasps, while the "decapitating fly," an insect in the same genus, implants its eggs in ants, whose heads then pop off after the fly larvae devour the ants' brains and dissolve their connective tissues. Now researchers have discovered honeybees parasitized by A. borealis in 24 of 31 sites across the San Francisco Bay area, as well as other commercial hives in California and South Dakota.

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