Deltaspis rubriventris is a species of longhorn beetle belonging to the family Cerambycidae. It is characterized by its elongated body and distinctive coloration, typically featuring a reddish or orange-red abdomen that contrasts with darker, often metallic or black elytra (wing covers). Like other members of its genus, Deltaspis rubriventris has long antennae, often as long as or longer than its body, which it uses for sensory perception.