Agromyzidae

Definition

A large family of small flies (order Diptera, superfamily Opomyzoidea) whose larvae are predominantly leaf miners, creating distinctive serpentine or blotchy mines within leaf tissue of angiosperms. The family comprises roughly 2,500 described species in two subfamilies (Agromyzinae, Phytomyzinae), with adults typically 2–3 mm in body length and rarely exceeding 6.5 mm. Larval feeding damage makes several genera economically significant agricultural and horticultural pests.

Etymology

From the type genus Agromyza (Greek agros 'field' + myza 'to suck') + family suffix -idae.

Example

The vegetable leafminer Liriomyza sativae (Agromyzidae) produces winding epidermal mines on bean and tomato leaves, reducing photosynthetic capacity and providing entry points for secondary pathogens; heavy infestations can render leafy greens unmarketable.

Synonyms

• leaf-miner flies

Related Terms

• Diptera
• leaf miner
• Opomyzoidea
• Liriomyza
• Phytomyza
• serpentine mine
• blotch mine
• Acalyptrata

Usage Notes

The common name 'leaf-miner flies' refers specifically to larval habit, though a minority of species have stem-boring or seed-feeding larvae. Agromyzidae is sometimes confused with the related family Anthomyiidae (root-maggot flies), but anthomyiids lack the characteristic larval mining behavior and have different wing venation. In integrated pest management, agromyzid damage is distinguished from that of Lepidopteran leaf miners by the presence of linear frass trails within the mine.