Annotated key to the genera of Braconidae (Hymenoptera) attacking leafmining Lepidoptera in the Holarctic Region

An annotated and illustrated key to the 40 genera of Braconidae (Hymenoptera) attacking leafmining Lepidoptera in the Holarctic region is presented; several genera are recorded from leafmining Lepidoptera for the first time. Geographic and host ranges, known diversity, and references to publications concerning biology and taxonomy of each group are included. Information summarized here is derived from published and museum records, and a combined total of eighteen years of field rearing surveys by the authors.