Scatopsidae

Definition

A family of minute nematoceran flies (Diptera) commonly known as minute black scavenger flies or dung midges. Adults are typically small to minute, dark-colored, and superficially resemble black flies (Simuliidae) but lack the pronounced humped thorax characteristic of that family. The family is globally distributed yet relatively species-poor, with approximately 250 described species in 27 genera and many undescribed taxa awaiting discovery. Larvae develop in decaying organic matter including dung, fungi, and rotting vegetation.

Etymology

From Greek skatos (dung, excrement) + opsis (appearance, sight), alluding to the association of many species with dung and decaying matter.

Example

Swammerdamella brevicornis, a scatopsid commonly attracted to human corpses in forensic entomology studies, demonstrates the family's utility in postmortem interval estimation despite their minute size and taxonomic neglect.

Synonyms

• Minute black scavenger flies
• dung midges

Related Terms

• Nematocera
• Simuliidae
• Diptera
• saprophagy
• Forensic entomology
• carrion ecology

Usage Notes

The common name 'dung midges' is somewhat misleading as adults are not restricted to dung habitats; larvae occupy diverse decaying substrates. The family is frequently overlooked in biodiversity surveys due to minute size and identification difficulty. Scatopsidae are not true midges (Chironomidae or Ceratopogonidae) despite the vernacular name. Specialist keys emphasize wing venation and genitalic characters for identification.