This is a click beetle (Family Elateridae) that has bioluminescence in the two yellow patches in the pronotum. It is a constant green color and it seems prone to illuminate when it is alert. This was found near the Cerro de San Gil Reserve in Izabal, Guatemala.
Totem animal #27: deep-sea shrimp (parapandulus) emitting bioluminescent “vomit” as defense mechanism. Red-light image by biologist Sönke Johnsen, 2009.
Scientists aren’t certain about the purpose of the glowing stuff yet, but think it may work “like the exploding-paint money bags you see in bank robbery movies,” Johnsen said. “An animal that disturbs the shrimp gets coated with light, which makes it highly visible to predators.”
It’s fitting that we start the third image gallery with this new contribution by Dr. Caldwell, because this pic of a fluorescing G. platysoma is one of the most beautiful images of stomatopods in the website! This was collected and photographed on Lizard Island, Great Barrier Reef. The animal was illuminated with a blue light (470 nm) and photographed through a strong yellow filter which filters out all of the blue light. Only fluorescent emissions were recorded. The red is a green algae and some coralline algae…
For more information on the phenomenon of fluorescence in stomatopods, click here.