Betsy Beetles are a large beetle that looks great in a school insect collection. The Betsy Beetle also go by the names Bess Beetle, Bess Bug, Betsy Beetle or Bug, Patent Leather Beetle and Peg Beetle depending on the area of the country they are collected. They feed on fungi found in rotting wood. They are easily collected by tearing into a rotting log in the woodlands. Where one is present there are usually many.