Japanese Water Penny vs Round-winged Muslin Moth

Side-by-side species comparison

Attribute Japanese Water Penny Round-winged Muslin Moth
Scientific Name Eubrianax granicollis Thumatha senex
Order Coleoptera Lepidoptera
Family Psephenidae Erebidae
Size 5-7 mm 18-24 mm wingspan
Habitat Forests Wetlands
Diet Omnivores Omnivores
Regions Japan, Taiwan Europe, Western Asia
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.

Round-winged Muslin Moth

A tiny moth with rounded translucent whitish wings marked with faint grey spots. It is among the smallest of the footman moths in Europe.

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Did You Know?

Its translucent wings are so thin that text can be read through them.