The Blue moon butterfly or Hypolimnas bo-lina is a bluish-dark butterfly. This butterfly with tens of different species is widespread in Asia, Australia, and Madagascar. The upper side has dominant black coloration with three pairs of blue-white spots on the fore and underwings. Females have brownish-black coloration but share similar patterns. The underside of both sexes has the same coloration as the upper side except they have white markings parallel to the edges. The Blue moon butterfly’s wings can span up to 3.3 inches. They have a slow yet erratic flight pattern. You can find this black butterfly with blue flying in their natural habitats including humid scrublands, green areas, lightly wooded deciduous forests, etc.