One feature of a flower that is trying to attract the Hummingbird moth as a pollinator would be a strong, sweet odor. This odor is something that the Hummingbird moth is attracted to and will help guide them towards the flower. Flowers that have this feature are more likely to be visited by Hummingbird moths and therefore more likely to be pollinated.
Flowers would likely be more reproductively successful if they adapted to more than just the needs of one pollinator, such as the Hummingbird moth. By attracting a variety of pollinators with different preferences and behaviors, flowers can increase their chances of being visited and pollinated. This diversity in pollinators can also help ensure that the flower is still able to reproduce even if one specific type of pollinator becomes less common or unavailable. Overall, having multiple strategies to attract a variety of pollinators can increase the reproductive success of the flower.