There are two subspecies of C. aeneoviolaceum:Colasposoma aeneoviolaceum aeneoviolaceum Burgeon, 1941: the nominotypical subspeciesColasposoma aeneoviolaceum elisabethae Burgeon, 1941: Compared to the nominal form, the adultsdiffer in their bronze colouring, have a cupreous or tanned underside, and have less abundant elytralpunctuation. The subspecies was described from Élisabethville, in the south of Katanga.