Insects producing honeydew exploited by bees in Greece

More than 65% of the honey in Greece derives from honeydew of insects. In a research work, started in 1977 and continued until now, 32 species of insects have been identified which produce honeydew exploited by bees. All these insects belong to the order Hemiptera : Homoptera and to the superfamilies Aphidoidea, Coccoidea, Psylloidea and Aleyroidea. Among these 32 species, the most important from the point of the honey production are: The coccids Marchalina hellenica (Gen.) and Physokemes hemicryphus Dalm. and the aphids Cinara confinis (Koch.) Cinara pectinatae Noerdl. and Mindarus abietinus Koch.