Porrostoma rufipennePorrostoma rufipenne is a species of beetle in the genus Porrostoma. It was first described by Johan Christian Fabricius in 1801.DescriptionIt is of medium size, and is a bright red or orange colour with thick antennae containing "leaves" along them.RangeIt is found in Australia and New Zealand.EcologyTheir bright colors may serve as a warning to potential predators.