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 Walter Kempf's 1972 catalogue of Neotropical ants. In 1972, American entomologist William Buren described what he thought was a new species, naming it "Solenopsis invicta". Buren collected a holotype worker from Cuiabá in Mato Grosso, Brazil, and provided the first official description of the ant in a journal article published by the Georgia Entomological Society. He accidentally misspelled "invicta" as "invica" above the description pages of the species, although it was clear that "invicta" was the intended spelling because of the constant use of the name in the article. The type material is currently housed in the National Museum of