Mesostena puncticollisMesostena puncticollis, the opossum beetle, is a species of darkling beetles in the subfamily Pimeliinae.DescriptionMesostena puncticollis can reach a length of about. Head, thorax and elytra are black, while ventral surface is reddish brown. Pronotum is goblet-shaped, elytra are elongated-elliptical, with large spots on the spotting-rows.Distribution and habitatThis species is present in Turkey, Saudi Arabia, Egypt, Jordan, Syria, Iraq and Iran.