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One of the species with the negative impact for corn crops in Europe is the coleopteran insect of Diabrotica virgifera virgifera (LeConte). The invasiveness but also the damage caused by adults can reduce the production of corn grain visible. By monitoring activities organized at local or national level (in Romania) often made confusion because coloristic variety intraspecific observed in insect populations. To identify the causes of color variability morphological studies were done on several samples present in d...