Diabrotica ID" is designed to allow identification of Diabrotica species that originate from North and Central America to users lacking an expertise in taxonomy of Diabrotica. Many Diabrotica species feed on flowers, leaves and roots of a wide variety of herbaceous plants, including agricultural crops, vegetables, fruits and ornamentals and are vectors of viral and other lethal plant diseases. Many Diabrotica species are commonly intercepted at the US ports of entry. In addition, some Diabrotica species have a tendency to rapidly expand their range. This tool recognizes 112 valid Diabrotica species and subspecies in North and Central America. Each species is fully illustrated, treated with a fact sheet, and included in the key.