Zygogramma leaf beetles, Arizona

Leaf beetles such as these brightly marked Zygogramma constitute one of the largest evolutionary radiations- the Chrysomelidae- among all animals.  This family of beetles owes its tremendous diversity to an herbivorous association with flowering plants.

photo details: Canon MP-E 65mm 1-5x macro lens on a Canon EOS 20D
ISO 100, 1/250 sec, f/13, indirect strobe fired into white box