none Agromyzidae; Metamorphosis; Pupation depth in soil, effect on adult emergence rate; Activity period; Flight; Hymenopteran parasites; Braconidae & Pteromalidae; Prevalence effects on flight activity & prevalence on crops; Plant hosts; Hordeum vulgare (barley); Biology, effect of hymenopteran parasite prevalence; Prevalence; Seasonality in plant hosts; Population regulation; Hymenopteran parasite prevalence role; Hungary; Lebenymiklos; Pupation rate & biology in plant hosts, effect of hymenopteran parasites Agromyza megalopsis (Agromyzidae); Oviposition; Sites in plant hosts; Larva; Development within plant hosts; Habitat preference; Oviposition sites in plant hosts; Hungary ctBGitognathus grandiclava; Halticoptera circulus (>); Braconidae, /ct, ; IHalticoptera circulus, /I (, ctPteromalidae, /ct); Dipteran hosts; Agromyzidae; Prevalence & role in host population regulation; Prevalence; Agromyzidae (Diptera) hosts, role in host population regulation; Hungary; Lebenymiklos; Prevalence in dipteran hosts & pupation