Australian Harlequin Bug vs Bed Bug

Side-by-side species comparison

Attribute Australian Harlequin Bug Bed Bug
Scientific Name Dindymus versicolor Cimex lectularius
Order Hemiptera Hemiptera
Family Pyrrhocoridae Cimicidae
Size 10-14 mm 4-7 mm
Habitat Underground Underground
Diet Predators Blood Feeders
Regions Australia, Oceania Worldwide
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.

Bed Bug

Obligate blood-feeding parasites of humans. Can survive up to a year without feeding. Have made a dramatic worldwide resurgence due to pesticide resistance and increased travel.

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Did You Know?

Bed bugs can survive without a blood meal for over a year and can withstand temperatures from near-freezing to 50°C, making them extraordinarily difficult to eliminate.