New data and a checklist of Dryinidae (Hymenoptera) from Poland, and their role in controlling leafhopper and planthopper crop pests (Hemiptera: Cicadomorpha, Fulgoromorpha)

Leafhoppers and planthoppers are a large group of insects (almost 600 species in Poland) with more than 50 species living and developing on cultivated plants in Poland. They cause plant damage by sucking sap and transmitting pathogens which cause plant diseases. In integrated plant protection, non-chemical methods such as natural enemies of pests should be used for preference. This paper gives the results of preliminary research on wasps of the family Dryinidae parasitizing leafhoppers and planthoppers that are crop pests in Poland. Parasitoids were obtained by rearing larvae and catching adults in fields. Data on 11 species of Dryinidae were obtained from Poland: three of them were not previously known from this country. A checklist of Dryinidae species known from Poland is given: it shows the species of Dryinidae parasitizing leafhoppers and planthoppers living on crops, and their role in reducing populations of these pests..