Opomyzidae

Definition

A family of acalyptrate Diptera (true flies) comprising small, slender flies typically colored yellow, brown, or black. Larvae are phytophagous, feeding internally on grasses and cereal crops, making some species economically significant agricultural pests; adults frequent open grassland habitats.

Etymology

From Greek 'opos' (juice, sap) + 'myzo' (to suck) + '-idae' (family suffix), referring to the sap-feeding habits of larvae.

Example

The yellow cereal fly (Opomyza florum) is a widespread Opomyzidae pest whose larvae tunnel in wheat and barley stems, causing 'dead-heart' symptoms in young plants.

Related Terms

• Acalyptratae
• Diptera
• Phytophagy
• Cereal pest
• Stem borer
• Agromyzidae
• Chloropidae

Usage Notes

Distinguished from similar grass-mining families (Agromyzidae, Chloropidae) by larval feeding ecology and adult morphology; identification often requires examination of wing venation and male genitalia. The family contains approximately 50 described species in two genera (Opomyza and Geomyza).