Spiders are not nearly as spooky as these guys! Parasitic Wasps are now being used as an expensive last resort pest control measure. These wasps lay eggs directly into the host, like a caterpillar or a horse fly. After the eggs hatch, they eat their way out, eventually killing the host. Farmers love these zombie-like wasps as an alternative pest control option for their crops as well as for protection against horseflies, which can threaten their horses and livestock with diseases and infection.
Check out this cringe-worthy video of these larvae in action!