Calligraphy Leaf Beetle

This species overlaps with that of Zygogramma piceicollis (http://www.projectnoah.org/spottings/467116029/fullscreen) and in fact both "species" were found on this plant together and in some cases even seemed to be mating. Two additional species, Calligrapha vigintimaculata and Calligrapha sp. (maybe C. diversa) are also found in the same area (http://www.projectnoah.org/spottings/70792286/fullscreen and http://www.projectnoah.org/spottings/36010034/fullscreen). This may mean that the whole group needs to be studied at a genetic level. According to Project Noah member, thaptor, mexican species of Zygogramma will soon be returned to the genus Calligrapha (see his comments here: http://www.projectnoah.org/spottings/467116029/fullscreen.