Tyloids
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Diplazontinae
Hover Fly Parasitoid Wasps
Diplazontinae is a subfamily of ichneumonid wasps comprising approximately 19 genera, with highest diversity in the Holarctic region. Members are specialized koinobiont endoparasitoids of hover flies (Syrphidae), with oviposition into host eggs or larvae and emergence from the puparium. The subfamily exhibits distinctive morphological features including three-toothed mandibles and a box-like first abdominal tergite. Several genera have undergone recent taxonomic revision, with Syrphoctonus split into multiple genera to restore monophyly.
Syrphoctonus
Syrphoctonus is a genus of ichneumonid wasps in the subfamily Diplazontinae. The genus contains numerous species worldwide, with over 30 species recorded from Europe. Members are parasitoids of hoverflies (Syrphidae). The genus name derives from Greek 'Syrpho-' (gnat) and '-ctonus' (killer), referring to this host association.