Acid beetle -- 003

Acid beetle -- 003

resilin

This image shows the Pygidial gland secretory lobes of a Pennsylvania ground beetle, greatly enlarged through the confocal laser scanning microscopy. The glandular spheres (yellow) are where defensive chemicals are synthesized, which are subsequently transported to a reservoir chamber via a resilin-rich collecting duct (blue).

IMAGE: Huck Institutes of the Life Sciences / Penn State, István Mikó and Adam Rork