Following egg hatch, trees were inspected at 3-day to weekly intervals through the remainder of the season. Life stages of the beetle were collected and identified, and typical damage noted. In laboratory studies, leaves with freshly laid eggs were collected and held until hatch. Following hatch larvae were supplied daily with fresh sycamore leaves as food. The beetle was carried through its cycle, and data on incubation period, larval development, pupation, and adult emergence and habits under laboratory conditions were recorded.
Color is yellowish bronze to reddish or brownish bronze.
When at rest, beetles resemble somewhat the droppings of caterpillars. The egg is not visible but is enclosed in a case made from fecal material secreted by the ovipositing female. Egg and case are attached to the leaf surface by a short stalk. When the larva moves about or feeds, the head and legs may be partially exposed, but it is largely the case that is visible on host foliage. The pupa and callow adult are also pinkish orange.