Japanese Whirligig Beetle vs Casemaking Clothes Moth

Side-by-side species comparison

Attribute Japanese Whirligig Beetle Casemaking Clothes Moth
Scientific Name Gyrinus japonicus Tinea pellionella
Order Coleoptera Lepidoptera
Family Gyrinidae Tineidae
Size 5-8 mm 10-15 mm wingspan
Habitat Ponds & Lakes Underground
Diet Omnivores Omnivores
Regions Japan, Korea, China Cosmopolitan
Conservation Least Concern Least Concern

Japanese Whirligig Beetle

A common whirligig beetle in East Asia found on still and slow-flowing water surfaces. It forms large social groups especially in autumn.

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Did You Know?

It uses the Marangoni effect, exploiting surface tension gradients to propel itself rapidly across water.

Casemaking Clothes Moth

A small silvery-brown moth whose larva constructs a portable silken case that it drags along as it feeds. It is a significant pest of furs, woolens, and museum specimens.

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Did You Know?

The larva never leaves its portable case, enlarging it as it grows by adding fibers from whatever material it is eating.