Xerolinus is a genus of darkling beetle. Platydema ruficorne is a species of darkling beetle in the family Tenebrionidae. Pentaphyllus testaceus is a species of darkling beetle in the family Tenebrionidae. Trachyscelis aphodioides is a species of darkling beetle in the family Tenebrionidae. Tarpela micans is a species of darkling beetle in the family Tenebrionidae. Flour beetles are members of the darkling beetle genera "Tribolium" or "Tenebrio". Eleodes osculans, the wooly darkling beetle, is a common nocturnal insect in coastal southern California. Darkling beetle is the common name of the large family of beetles Tenebrionidae.