The economically important alien invasive planthoppers in Turkey (Hemiptera: Fulgoromorpha).
Alien invasive Hemiptera species are insects of special interest in terms of their nutritional characteristics and their damage and potential effects on cultivated plants. In this study the available information on the two planthopper species that are invasive in the western Palaearctic region and are harmful polyphagically on the EPPO list are summarized and revised. The effects of Metcalfa pruinosa (Say, 1830) of the Flatidae family and Orosanga japonica (Melichar, 1898) of the Ricaniidae family are seen particularly intense in the Eastern Black Sea Region in Turkey. Host plants of these species, their possible effects, origins and geographical distribution are given.