[click on image to see a larger one]
Human vision:

Ultraviolet (UV):

Simulated butterfly vision:

Simulated bee vision:

Quadriptych (left to right, top to bottom): Human vision, UV, simulated butterfly vision, simulated bee vision:

Mexican Zinnia flowers have a very specific UV pattern. Their petals are very UV dark in the middle and bottom, their petal tips, however, are very UV bright (around 365nm outer tip), and all this gets nicely visible, also in simulated bee and butterfly vision.
I have previously written about those Zinnias HERE
Stay tuned, more will follow on that fascinating subject...