Discothyrea Ant vs Japanese Whirligig Beetle

Side-by-side species comparison

Attribute Discothyrea Ant Japanese Whirligig Beetle
Scientific Name Discothyrea testacea Gyrinus japonicus
Order Hymenoptera Coleoptera
Family Formicidae Gyrinidae
Size 1.5-2 mm 5-8 mm
Habitat Underground Ponds & Lakes
Diet Omnivores Omnivores
Regions Southern Europe, North Africa Japan, Korea, China
Conservation Least Concern Least Concern

Discothyrea Ant

An extremely small and rarely seen ant with only a single-segmented antennal club, unique among ants. It nests deep in soil and rotting wood across southern Europe.

💡

Did You Know?

Its single-segment antennal club is found in no other ant genus, making it instantly recognizable to myrmecologists.

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.

💡

Did You Know?

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