Australian Harlequin Bug vs Periodical Cicada

Side-by-side species comparison

Attribute Australian Harlequin Bug Periodical Cicada
Scientific Name Dindymus versicolor Magicicada septendecim
Order Hemiptera Hemiptera
Family Pyrrhocoridae Cicadidae
Size 10-14 mm 25-33 mm
Habitat Underground Woodlands
Diet Predators Root Feeders
Regions Australia, Oceania North America
Conservation Least Concern Least Concern

Australian Harlequin Bug

A small but conspicuous red and black bug that often aggregates in large numbers on tree trunks, fences, and walls during autumn. Its bright colouration warns predators of its foul-tasting defensive secretions.

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Did You Know?

Harlequin bugs produce a pungent smell when disturbed, and large aggregations can number in the thousands.

Periodical Cicada

Emerges in massive synchronized broods every 17 years. Nymphs live underground feeding on tree root sap. Males produce the loudest sounds of any insect at up to 100 dB.

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Did You Know?

Periodical cicadas spend exactly 17 years underground (a prime number), and scientists believe this evolved to prevent predators from synchronizing their own cycles.