Tetracampidae

Definition

A small family of chalcidoid wasps (Hymenoptera: Chalcidoidea) comprising parasitoids that attack phytophagous insects, primarily dipteran larvae. The family contains approximately 44 species in 15 genera with a predominantly Palearctic, Afrotropical, and Oriental distribution; it is almost entirely absent from the New World.

Etymology

From Greek tetra- (four) and Latin campus (field), referring to structural features of the wing venation or body segmentation characteristic of the family.

Example

Tetracampid wasps such as those in the genus Dicladocerus are known to parasitize agromyzid leaf-miner flies, making them potential candidates for biological control programs targeting agricultural pests.

Related Terms

• Chalcidoidea
• Parasitoid
• Eulophidae
• Eupelmidae
• Biological control
• agromyzid
• leaf miner

Usage Notes

The family is morphologically and biologically distinct from the larger and more commonly encountered chalcidoid families such as Eulophidae and Eupelmidae. Identification requires examination of wing venation patterns and antennal segmentation. The near-absence of Tetracampidae from the Americas makes their presence in Nearctic or Neotropical material noteworthy and potentially indicative of introduction or misidentification.