Australian March Fly vs Banded General Soldier Fly

Side-by-side species comparison

Attribute Australian March Fly Banded General Soldier Fly
Scientific Name Bibio imitator Stratiomys potamida
Order Diptera Diptera
Family Bibionidae Stratiomyidae
Size 6-10 mm 12-16 mm
Habitat Woodlands Ponds & Lakes
Diet Herbivores Nectar Feeders
Regions Australia Europe, Asia
Conservation Least Concern Least Concern

Australian March Fly

A robust black bibionid fly that appears in large numbers during the Australian autumn. It has a hairy body and is a sluggish flyer, often seen resting on vegetation.

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Did You Know?

Despite sharing the common name with horse flies in Australia, march flies in the family Bibionidae are completely harmless.

Banded General Soldier Fly

A large, boldly marked soldier fly with a broad flat abdomen bearing yellow lateral markings. Its aquatic larvae are elongate and can breathe through a posterior spiracle at the water surface.

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Did You Know?

Larvae can survive in heavily polluted water where most other aquatic insects cannot live.