Myrmecia (ant) encountered before. Based on five species, the median lethal dose (LD) is 0.18–0.35 mg/kg, making it among the most toxic venoms in the insect world. The toxicity of the venom may have evolved due to the intense predation by animals and birds during the day, since "Myrmecia" is primarily diurnal. In Tasmania, 2–3% of the human population is allergic to "M. pilosula" venom. In comparison, only 1.6% people are allergic to the venom of the western honeybee ("Apis mellifera"), and 0.6% to the venom of the European wasp ("Vespula germanica"). In a 2011 Australian ant-venom allergy study, the objective of
Red imported fire ant species. Although parasitism pressures by these flies do not affect the ants' population density and activity, it has a small effect on a colony population. The strepsipteran insect "Caenocholax fenyesi" is known to infect male ants of this species and attack the eggs, and the mite "Pyemotes tritici" has been considered a potential biological agent against red imported fire ants, capable of parasitising every caste within the colony. Bacteria, such as "Wolbachia", has been found in the red imported fire ant; three different variants of the bacteria are known to infect the red imported fire ant. However, its effect on