Astaena corrugataAstaena corrugata is a species of beetle of the family Scarabaeidae. It is found in Costa Rica.DescriptionAdults reach a length of about 7–8 mm. The head is piceous and shiny, while the pronotum and elytra are opaque, velvety and greyish black. The legs are dark reddish brown.EtymologyThe name of the species is derived from Latin corrugata and refers to the transverse ridges on the elytra.