Bioluminescent Fungus Gnat vs Greater Bee Fly

Side-by-side species comparison

Attribute Bioluminescent Fungus Gnat Greater Bee Fly
Scientific Name Keroplatus testaceus Bombylius canescens
Order Diptera Diptera
Family Keroplatidae Bombyliidae
Size 8-12 mm 10-14 mm
Habitat Woodlands Deserts & Drylands
Diet Fungus Feeders Nectar Feeders
Regions Europe Southern Europe, North Africa, Western Asia
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.

Greater Bee Fly

A pale greyish bee fly with a long proboscis and clear wings. It parasitizes ground-nesting bees in arid Mediterranean habitats.

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Did You Know?

It can hover motionless in the air for extended periods while probing flowers with its rigid proboscis.