About Colaspis brunnea (Fabricius, 1798)
Colaspis brunnea, commonly known as the grape colaspis, is a species of leaf beetle native to North America, where it is primarily found in the eastern United States. This species acts as a pest of crops including corn and soybeans, though economically significant damage caused by it has not been documented. Colaspis brunnea is univoltine, meaning it produces one generation per year, and overwinters in soil as larvae. Adult grape colaspis are brown in color (the species epithet brunnea is Latin for brown), and grow to approximately 5 mm in length. Their elytra feature a series of parallel rows of puncture marks. Larvae are scarabaeiform grubs, with white-grey bodies and orange head capsules. In their 10th instar, larvae measure between 5 and 6.5 mm in length.
