Syrphid-parasitoid
Guides
Diplazon
Diplazon is a genus of parasitoid wasps in the family Ichneumonidae, subfamily Diplazontinae. The genus has cosmopolitan distribution with records from Europe, North America, and Asia. Species in this genus are known to parasitize syrphid fly larvae (hoverflies), with D. laetatorius being the most studied species. At least nine species occur in Japan alone, indicating substantial regional diversity.