Embolemidae

Definition

A family of minute solitary parasitoid wasps (Hymenoptera) comprising approximately 70 species in two genera, distributed worldwide. Adults are typically brachypterous or apterous with reduced wing venation. Known larvae are endoparasitoids of planthopper nymphs (Hemiptera: Fulgoroidea), specifically within the families Achilidae and Cixiidae, with females locating hosts in concealed habitats such as leaf litter or soil crevices.

Etymology

From the genus Embolemus (type genus) + -idae (family suffix); Embolemus from Greek embole (insertion, referring to the ovipositor structure).

Example

Embolemus walkeri, a widespread Palearctic species, parasitizes nymphs of Cixiidae planthoppers in decaying wood and forest floor debris.

Related Terms

• Hymenoptera
• Parasitoid
• brachypterous
• Cixiidae
• Achilidae
• Aphelidae
• Dryinidae

Usage Notes

Family rank within Hymenoptera; sometimes grouped with Aphelidae and Dryinidae in the superfamily Chrysidoidea or as a distinct lineage. Taxonomic debate persists regarding the generic synonymy of Ampulicomorpha with Embolemus. Species identification often requires examination of wing reduction patterns and male genitalia. Not to be confused with the morphologically similar but unrelated Bethylidae or Chrysididae.