Specific short DNA sequences or markers from a standardized region of the genome can provide a DNA barcode for identifying species. Molecular methods are especially useful when traditional methods are not applicable. DNA barcoding has great applicability in identification of larvae for which there are generally few diagnostic characters available, and in association of different life stages in animals. Identification of species listed in the convention of the international trade of endangered species (CITES) appendixes using barcoding techniques is used in illegal trade monitoring.