Common Bagworm Moth vs Australian Harlequin Bug

Side-by-side species comparison

Attribute Common Bagworm Moth Australian Harlequin Bug
Scientific Name Psyche casta Dindymus versicolor
Order Lepidoptera Hemiptera
Family Psychidae Pyrrhocoridae
Size Males 12-15 mm wingspan; females wingless 10-14 mm
Habitat Underground Underground
Diet Wood Feeders Predators
Regions Europe Australia, Oceania
Conservation Least Concern Least Concern

Common Bagworm Moth

A small moth whose larva builds a distinctive portable bag from silk and plant debris that it carries everywhere. Adult females are wingless and never leave their larval bag.

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Did You Know?

The wingless female mates, lays eggs, and dies entirely within the bag she built as a caterpillar.

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.