Bioluminescent Fungus Gnat vs Common Moth Fly

Side-by-side species comparison

Attribute Bioluminescent Fungus Gnat Common Moth Fly
Scientific Name Keroplatus testaceus Psychoda alternata
Order Diptera Diptera
Family Keroplatidae Psychodidae
Size 8-12 mm 2-4 mm
Habitat Woodlands Woodlands
Diet Fungus Feeders Detritivores
Regions Europe Cosmopolitan
Conservation Near Threatened Least Concern

Bioluminescent Fungus Gnat

A remarkable fungus gnat whose larvae create bioluminescent webs on bracket fungi. The blue-green glow attracts prey insects. One of the few bioluminescent insects outside fireflies.

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Did You Know?

Larvae glow in the dark, creating eerie blue-green patches on bracket fungi in dark forests.

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.