Japanese Water Penny vs Striped Cucumber Beetle

Side-by-side species comparison

Attribute Japanese Water Penny Striped Cucumber Beetle
Scientific Name Eubrianax granicollis Acalymma vittatum
Order Coleoptera Coleoptera
Family Psephenidae Chrysomelidae
Size 5-7 mm 5-6 mm
Habitat Forests Farmland
Diet Omnivores Fruit Feeders
Regions Japan, Taiwan North America
Conservation Least Concern Not Evaluated

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.

Striped Cucumber Beetle

A yellow beetle with three black stripes that specializes on cucurbit crops. It is a major vector of bacterial wilt and squash mosaic virus.

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Did You Know?

Adults are strongly attracted to cucurbitacin, a bitter compound in wild cucurbits, which they use to find host plants.