Moths are active at night, so require flowers that are open and providing nectar at night. White flowers with a very strong, sweet scent are easiest for them to locate. Examples of flowers for a moonlight moth garden are honeysuckle, datura, flowering tobacco, and primrose. In fact, yuccas can only be pollinated by one insect, the yucca moth. We tend to forget other insects that pollinate flowers.
Beetles come to dull, reddish brown flowers that smell spicy or like rotting fruit.
Examples of beetle pollinated plants are magnolia and spice bush. Flies pollinate a few specialized flowers. The y are attracted to drab, colorless or green flowers that often emit a foul odor to lure them. Examples are dutchman's pipe and stapelia. Most of us know that birds, and particularly hummingbirds, prefer red and orange flowers that are tubular in shape.