Schmidt sting pain index painful. However, insect stings that feel very different can be put into the same level. Thus, Schmidt always includes a brief description of his experience being stung by each type of insect. On that note, these stings are based on Schmidt's subjective perspective, and insect stings can vary person to person, so the scale is not universal. Some of the insect stings Schmidt considers to be at a pain level of 1 include the Southern fire ant, the elongate twig ant, the Western paper wasp, the white-faced bee, and most small bees. The duration of the pain of insect stings
Insect significantly; most noticeably, they do not have the six-legged characteristic of adult insects. The higher-level phylogeny of the arthropods continues to be a matter of debate and research. In 2008, researchers at Tufts University uncovered what they believe is the world's oldest known full-body impression of a primitive flying insect, a 300-million-year-old specimen from the Carboniferous period. The oldest definitive insect fossil is the Devonian "Rhyniognatha hirsti", from the 396-million-year-old Rhynie chert. It may have superficially resembled a modern-day silverfish insect. This species already possessed dicondylic mandibles (two articulations in the mandible), a feature associated with winged insects, suggesting that