Opomyzidae

Classification

Phylum: Arthropoda
Subphylum: Hexapoda
Class: Insecta
Order: Diptera
Superfamily: Opomyzoidea
Family: Opomyzidae

Pronunciation

How to pronounce Opomyzidae: /ˌɔpoʊˈmɪzɪˌdiː/

These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.

Images

Summary

Opomyzidae is a family of small flies known for their agricultural impact as larvae that feed on grass stems. They are characterized by specific wing structures and bristle arrangements. Some species are considered pests in agriculture, particularly in cereal crops.

Physical Characteristics

Small slender yellow, brown, reddish or black flies, 1-5 mm in size. Narrow wings with spots, head with one pair of backwardly directed orbital bristles, ocelli present, arista pubescent, tibiae without preapical dorsal bristles.

Identification Tips

Look for the presence of long, backwardly directed orbital bristles and the limited number of crossveins in the wings. The absence of vibrissae is also a notable feature.

Habitat

Adults are mainly found in open habitats on grass in moist areas.

Distribution

Approximately 13 species in 3 genera in specific regions; around 60 species in total across 4 genera.

Diet

Larvae are stem borers found in grasses, including cereal crops.

Life Cycle

Life cycle involves larvae living within grass stems, growing until adulthood.

Reproduction

Specific reproductive methods not detailed; likely involves oviposition in grass stems.

Ecosystem Role

Larval feeding can impact grass health, making them notable agricultural pests.

Economic Impact

Some species, like Opomyza florum (Yellow Cereal fly), are considered agricultural pests, causing damage termed 'dead heart' in grasses.

Collecting Methods

Hand netting in grassland areas
Beating sheets beneath foliage

Preservation Methods

Ethanol immersion
Pinning specimens
Drying and storing in envelopes

Similar Taxa

Misconceptions

These insects are often mistaken for other small flies or pests but have distinct morphological features and ecological roles.