Australian Harlequin Bug vs Malagasy Dobsonfly

Side-by-side species comparison

Attribute Australian Harlequin Bug Malagasy Dobsonfly
Scientific Name Dindymus versicolor Neochauliodes madagascariensis
Order Hemiptera Megaloptera
Family Pyrrhocoridae Corydalidae
Size 10-14 mm 40-60 mm wingspan
Habitat Underground Rivers & Streams
Diet Predators Predators
Regions Australia, Oceania Madagascar
Conservation Least Concern Data Deficient

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.

Malagasy Dobsonfly

A large, brown-winged insect with broad wings held tent-like over the body at rest. Males may have elongated mandibles. Larvae are aquatic and known as hellgrammites.

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Did You Know?

The aquatic larvae are considered indicators of clean water quality, as they cannot tolerate polluted streams.