Striped Crawling Water Beetle vs Japanese Blister Beetle

Side-by-side species comparison

Attribute Striped Crawling Water Beetle Japanese Blister Beetle
Scientific Name Haliplus lineaticollis Epicauta gorhami
Order Coleoptera Coleoptera
Family Haliplidae Meloidae
Size 3-4 mm 12-18 mm
Habitat Wetlands Farmland
Diet Herbivores Predators
Regions Europe East Asia, Japan/Korea
Conservation Least Concern Least Concern

Striped Crawling Water Beetle

A small yellowish-brown beetle with distinctive dark longitudinal stripes on the pronotum. It is commonly found in weedy ponds and marshes throughout Europe.

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Did You Know?

Larvae have an unusual body form with long lateral projections that help them cling to algal mats.

Japanese Blister Beetle

A black and orange striped blister beetle found in Japan and Korea. Known as 'tsuchi-hanmyo.' Contains cantharidin, a blistering agent, in its body fluids as a defense against predators.

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Did You Know?

When disturbed, this beetle exudes hemolymph containing cantharidin from its leg joints, which can cause painful blisters on human skin.