Encyrtidae (Hymenoptera, Chalcidoidea) colectados en Montblanquet (Lleida, Cataluna).

The effect of farming intensif ication on arthropod diversity in the Mediterranean dry-land context was tested. In nine cereal f ields of Montblanquet we collected almost 30,000 specimens, belonging to 12 orders and 113 families. However, this work refers only to the Encyrtidae (Hymenoptera) catches. A total of 12 species were identif ied, 10 of these are new for Catalonia and Copidosoma babas (Walker, 1837), Metaphycus stagnarum Hoffer, 1954 and Ooencyrtus gonoceri Viggiani, 1971 are the first quotation for the Iberian Peninsula..