Japanese Soldier Fly vs Common Moth Fly

Side-by-side species comparison

Attribute Japanese Soldier Fly Common Moth Fly
Scientific Name Ptecticus tenebrifer Psychoda alternata
Order Diptera Diptera
Family Stratiomyidae Psychodidae
Size 10-14 mm 2-4 mm
Habitat Forests Woodlands
Diet Scavengers Detritivores
Regions East Asia Cosmopolitan
Conservation Least Concern Least Concern

Japanese Soldier Fly

A slender soldier fly with a metallic greenish-black body and elongate antennae. It is commonly found near decaying organic matter in gardens and forests across East Asia.

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Did You Know?

Like the black soldier fly, species of Ptecticus are being studied as potential bioconversion agents for organic waste.

Common Moth Fly

A tiny grayish moth fly with broad, hairy wings giving it a distinctly moth-like appearance. Its wings are held flat over the body at rest, and it runs in short hops when disturbed.

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Did You Know?

Moth flies are important components of sewage treatment trickling filter beds where their larvae help break down waste.