Diadegma (genus - parasitoids)
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Diadegma Förster, 1869
This genus of parasitoid wasps contains around 200 species and has a wide distribution. The adults are less than 10 mm long and mostly black. The host insects are lepidopteran larvae.
Some species are specialized on one family whereas others have a wide host range. Important biological control agents of pests are for example Diadegma semiclausum or Diadegma insulare. D. semiclausum has been released into a number of countries against the diamondback moth, Plutella xylostella. In fact six of the species listed below parasitize P. xylostella.
Currently, the following species have been entered into the system: