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Completely revised and updated. Complete key to the subfamilies of the Braconidae since van Achterberg's key, published in 1976. Apart from this well-illustrated key, the program also includes a newly developed multi-entry matrix key. All subfamilies are described and for every subfamily a set of drawings is given to facilitate recognition if no reference collection is present. The program also includes a hyperlinked glossary, references, and extensive information on terminology and classification.