Trophic relations between 19 species of fungus gnats and Russulales fungi were established: 14 fungus gnat species (belonging to 5 genera) with Lactarius, and 13 species (belonging to 7 genera) – with Russula species. The fauna of fungus gnats was established on six more common Lactarius species (Lactarius deliciosus, L. deterrimus, L. necator, L. piperatus, L. torminosus, L. vellereus). The analysis showed that the fungi of different Lactarius species are distinguished by specific complexes of fungus gnat fauna.
Keywords: fungivorous Diptera, fungal habitats, Mycetophilidae, fruit bodies, Russula, Lactarius.