Three-lined Lema Beetle - Lema trivittata
Atco, Camden County, New Jersey, USA
July 25, 2013
Not great image... Found on ground cherry. It looked different from L. daturaphila on near other ground cherry plant.
I think it fits this ID in the info page.
•lateral black vitta covering 2½ intervals at most (more in daturaphila);
(following characters of +/- gradual nature)
•tibiae usually yellow for more than half of their length (nearly always dark to more than 1/2 in daturaphila);
•femora often dark apically (rarely so in daturaphila)