Abstract
A key is given to the six genera of Signiphoridae includingRozanoviellagen. n. which is described to accommodate five congeneric species, three transferred fromSigniphoraand two fromThysanus. All are secondary parasites of Hymenoptera and Lepidoptera through Tachinids. The correct name of the type-species ofKerrichiellais shown to beThysanus coleoptratusKerrich.

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