What Do Earwigs Look Like? - The Australian Museum

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Earwigs belong to the Order Dermaptera.

What do earwigs look like?

Size:

• 5 mm - 50 mm in length.

Body:

• Column-like or vaguely tear-drop shaped.
• Flattened as if pressed from above.

Antennae:

• Thread-like, never longer than body.

Eyes:

• Large and well separated or very small to absent.

Mouthparts:

• For chewing or munching.
• Held in front at rest.

Wings:

• Two pairs if present.
• Forewing hardened, cloudy and without veins; rectangular shaped and so short the abdomen is uncovered.
• Hindwing membranous, and partially see-through; larger than forewing and folds like a hand fan.
• At rest the wings are held flat to body, meeting at midline, with hindwing hidden.

Limbs:

• Six legs, slender.
• Tarsi (toes) with three segments.

Abdomen tip:

• Two hardened tails modified as forceps.

Where are earwigs found?

• Amongst leaf litter, under bark and rocks, and within crevices or rotting logs.

Earwigs behaviour

• They are usually found alone or at most in small numbers.
• When disturbed they run away, in search of cover; they rarely fly.
• They are weak fliers, usually flying for short bursts.
• They feed on decaying plant or animal debris; some will also feed on live plant material and capture live insect prey.
• Most are active during the night.

What animals look similar to earwigs?

• Diplurans (Order Diplura) can be distinguished from earwigs by a lack of eyes, paired ventral appendages under all or most of the abdominal segments and tarsi (toes) with only one segment.
• Rove beetles have small forewings, with large folded and functional wings underneath, but unlike earwigs they lack fully developed forceps.

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The Australian Museum respects and acknowledges the Gadigal people as the First Peoples and Traditional Custodians of the land and waterways on which the Museum stands.

Image credit: gadigal yilimung (shield) made by Uncle Charles Chicka Madden

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