Most of the images below of grasshopper fluorescence were all made at night in their natural environment. The deep red fluorescence in all of these images comes from chlorophyll in green plants.
(Click any image for larger view)
One night I went out to photograph the fluorescence of Queen Anne’s lace (Daucus carota) but shifted my focus when this grasshopper insisted on posing for me.
This grasshopper was on a tree. Maybe he thought he was well camouflaged against the bark, but fluorescence reveals all!
Now on to tomato plants in a friend’s garden. This grasshopper cooperated by not moving even with me crashing around with my tripod and flashing bright lights at it.
I moved in for some closer shots and then another grasshopper moved in to photobomb the image – see the third picture here.
I moved on to another grasshopper posing on the same plant, also very accommodating. And the photobomber moved into this shot too.
And some shots of this last one from the side.
At the Entomology Society of America meeting in November 2015 Derek A. Woller (Texas A&M University, Song Lab, Department of Entomology) brought by a specimen of the grasshopper Melanoplus rotundipennis, and I was able to take some photos on the spot. Thanks Derek!