Beetles are the primary pollinators of ancient flowers.
One interesting fact about beetles is that they use a form of pollination known as "mess and soil" pollination. Unlike bees and butterflies, these insects can eat all parts of a plant, from pollen and other floral tissues to even the bark of trees. They even poop within the flowers.
They are the primary pollinators of primitive flowering plants like cycads, magnolias, and water lilies. These plants often have large, bowl-shaped, or cup-shaped flowers that are more open and accessible to beetles than those targeted by bees or butterflies.