A diptych today, comprising a Bidens ferulifolia and Sanvitalia procumbens flower side-a-side in normal VIS and a bee vision (as seen through my one-shot propriatory XBV3 filter).

Stay tuned, more will follow on that fascinating subject...
More info on this very interesting field may be found on my site
http://www.pbase.com/kds315/uv_photos