Broad Centurion Soldier Fly vs Mountain Prosimulium

Side-by-side species comparison

Attribute Broad Centurion Soldier Fly Mountain Prosimulium
Scientific Name Chloromyia formosa Prosimulium mixtum
Order Diptera Diptera
Family Stratiomyidae Simuliidae
Size 7-10 mm 2-4 mm
Habitat Underground Mountains
Diet Detritivores Omnivores
Regions Europe North America
Conservation Least Concern Least Concern

Broad Centurion Soldier Fly

A beautiful metallic green soldier fly with a broad, flattened abdomen and coppery reflections. Males are more blue-green while females appear more coppery-bronze.

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Did You Know?

Males and females are so differently colored that they were originally described as separate species.

Mountain Prosimulium

An early-season black fly of cold mountain streams in North America. Larvae develop in small headwater streams during late winter and early spring.

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Did You Know?

Adults emerge so early in spring that they are often the first biting flies encountered by hikers each year.