Anthia is a genus of the ground beetle family, the Carabidae. Species of Anthia can spray a jet of formic acid up to 30 centimetres (12 in), which if not treated, can cause blindness in cats and chickens. In general the beetles are large, armored, fast-moving, with prominent, powerful, sharp mandibles. Some are diurnal predators in semi-arid habitats, some are nocturnal.