Blaesia atra is a beetle of the family Scarabaeidae and subfamily Cetoniinae.
Description Blaesia atra can reach about in length and about in width. The body is usually black, with dark brown reddish elytra. Antenna are black, with 10 segments. Pronotum and elytra are moderately punctate. Legs and venter have a dense fringe of rust colored setae. This species is associated with ants of Acromyrmex species (myrmecophily).
Distribution This species occurs in Paraguay, Uruguay, Argentina, Bolivia and southern Brazil.
References Encyclopedia of Life New World Scarab Beetles Brett C. Ratcliffe - - A review of the Blaesiina (Coleoptera, Scarabaeidae, Cetoniinae, Gymnetini)