Japanese Water Penny vs Blue Mountains Glowworm

Side-by-side species comparison

Attribute Japanese Water Penny Blue Mountains Glowworm
Scientific Name Eubrianax granicollis Arachnocampa richardsae
Order Coleoptera Diptera
Family Psephenidae Mycetophilidae
Size 5-7 mm 3-5 mm
Habitat Forests Forests
Diet Omnivores Fungus Feeders
Regions Japan, Taiwan Australia
Conservation Least Concern Least Concern

Japanese Water Penny

An East Asian water penny beetle found in swift forest streams of Japan. Adults are dark and robust with a granular pronotum.

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Did You Know?

Its larvae use a suction-cup-like ventral surface to maintain their grip on stones in powerful currents.

Blue Mountains Glowworm

An Australian bioluminescent fungus gnat closely related to the New Zealand glowworm. Its larvae hang from cave ceilings and rainforest overhangs, emitting a blue-green glow.

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Did You Know?

Different Arachnocampa species emit slightly different colors of light, from blue-green to green-yellow.