Australian Harlequin Bug vs Tropical Bed Bug

Side-by-side species comparison

Attribute Australian Harlequin Bug Tropical Bed Bug
Scientific Name Dindymus versicolor Cimex hemipterus
Order Hemiptera Hemiptera
Family Pyrrhocoridae Cimicidae
Size 10-14 mm 5-7 mm
Habitat Underground Forests
Diet Predators Blood Feeders
Regions Australia, Oceania Southeast Asia, Africa, South 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.

Tropical Bed Bug

A tropical relative of the common bed bug that also feeds on human blood. It is the dominant bed bug species in many parts of the tropics.

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Did You Know?

It can hybridize with the common bed bug in laboratory settings, though hybrids are infertile.