Complex sentence: Ichneumoninae are koinobiont or idiobiont endoparasitoids of Lepidoptera.This is the second largest subfamily of Ichneumonidae with 373 genera.
Split into simpler sentences: Ichneumoninae are koinobiont or idiobiont endoparasitoids of Lepidoptera. It is the second largest subfamily of Ichneumonidae, with 373 genera.