Intertidal-adaptation
Guides
Platygastridae
Platygastridae is a family of minute parasitoid wasps in the superfamily Platygastroidea, comprising approximately 1100-2000 described species. Members are exclusively parasitoids, with most species measuring only 1–2 mm in length. The family is divided into two traditional subfamilies: Platygastrinae, which are koinobiont parasitoids of cecidomyiid (gall midge) eggs and larvae, and Sceliotrachelinae, which are generally idiobionts attacking eggs of beetles or Hemiptera. Several genera, including Synopeas, Trimorus, and Telenomus, contain species of agricultural importance as biological control agents.
Scelioninae
Scelioninae is a large subfamily of parasitoid wasps in the family Scelionidae, containing over 3,000 described species across approximately 160 genera. These wasps are exclusively parasitoids, primarily attacking the eggs of insects, spiders, and other arthropods. They are generally idiobionts—parasitoids that prevent further host development after attack—and several genera have evolved winglessness or adaptations for aquatic environments, including underwater attack of insect eggs.