A new species, Anthrenus (Anthrenus) graecus, Holloway & Herrmann (Coleoptera: Dermestidae: Megatominae) from Greece is described and compared with Anthrenus pimpinellae Fabricius, 1775, the most obvious confusion species. Externally, the two species are very similar. Differences at the aedeagal level are subtle, the feature displaying the most obvious differences between the species is the structure of male sternite IX. As well as displaying the images, a quantitative comparison is made separating the sternite IXs. Both species were found in the same region around Thessaloniki, but further south in Crete only A. graecus specimens were found.