A new species of (Lepidoptera, Gracillariidae) feeding on (Fabaceae) in southern Siberia and its hymenopterous parasitoids.

A new species of leaf-mining moth described here as Kirichenko, Akulov & Triberti, was detected in large numbers feeding on (Fabaceae) in the Republic of Khakassia (Russia) in 2020. A morphological diagnosis of adults, bionomics and DNA barcoding data of the new species are provided. The developmental stages (larva, pupa, adult), male and female genitalia, as well as the leaf mines and the infestation plot in Khakassia are illustrated; the pest status of the new species in the studied region is discussed. Additionally, parasitism rate was estimated, the parasitoid wasps reared from pupae of the new species were identified (morphologically and genetically) and illustrated . Among them, one ichneumonid, Campoplexsp. aff.borealis (Zetterstedt) and two braconids, (Zetterstedt) and (Tobias et Kotenko), are novel records for the Republic of Khakassia. Furthermore, they are all documented as parasitoids of Gracillariidae for the first time. The DNA barcode of is newly obtained and can be used as a reference sequence for species identification.