The parasitoid complex (Hymenoptera, Eulophidae) of leafminer flies (Diptera, Agromyzidae) in the middle Volga Basin

Parasitoid complexes of fifteen species of Agromyzidae reared from 20 host plants were studied: Agromyza nana Meigen, Aulagromyza populi (Kalt.), Amauromyza sp. n. aff. insularis , Calycomyza humeralis (von Roser), Chromatomyia horticola (Goureau), Liriomyza eupatoriana Spencer, L. demeijerei Hering, L. dracunculi Hering, L. strigata (Meigen), L. soror Hendel, L. tanaceti de Meijere, L. taraxaci Hering, Ophiomyia quinta Spencer (recorded for the first time for the Palaearctic), Phytomyza petoei Hering, and Ph. griffithsi Spencer. A total of 38 host-parasitoid associations were analyzed, 31 of them were previously unrecorded. During this research, 17 Eulophidae parasitoid species ( Cirrospilus viticola (Rondani), Chrysocharis pubicornis (Zetterstedt), Ch. viridis Nees, Ch. crassiscapus (Thomson), Closterocerus trifasciatus Westwood, Diglyphus crassinervis Erdös, D. chabrias (Walker), D. isaea Walker, D. poppoea Walker, D. pusztensis (Erdös, Novicky), Minotetrastichus frontalis (Nees), Neochrysocharis aratus (Walker), N. formosa (Westwood), Pnigalio pectinicornis (Linnaeus), P. soemius (Walker), Pediobius metallicus (Nees), and P. cassidae Erdös) were found. New parasitoids were recorded for Ch. horticola , A. nana , and Ph. petoei . The number of ectoparasitoid species was 1.25 times as great as that of endoparasitoids in the complexes, whereas the number of reared specimens of ectoparasitoids was 1.7 times as great as that of endoparasitoids. The dominant species of the parasitoid complexes of Agromyzidae were D. isaea (28.4%), Pediobius metallicus (14.5%), N. formosa (13.7%), and Pnigalio soemius (12.7%).