### Identification The *Allodahlia scabriuscula* is a striking representative of the earwig world, far removed from the common garden variety. Measuring between 15–22mm, its most defining feature is its "scabrous" texture—the body is not glossy but heavily stippled with fine, sandpaper-like pits. It sports a deep, matte charcoal or soot-black coloration, occasionally blushing into a dark mahogany on the legs. Unlike the common earwig, its forceps (cerci) are notably long and slender; in males, these are elegantly curved with a distinct tooth near the base, while females possess straighter, more symmetrical pincers. Look for the short, leathery forewings (tegmina) which lack any pale spots, distinguishing it from its cousin, *Allodahlia macropyga*.
### Habitat & Range This is a creature of the humid subtropics and montane forests. You’ll find *A. scabriuscula* across Southeast Asia, ranging from the eastern Himalayas through Thailand and into Vietnam. It thrives in high-moisture microhabitats, specifically within the leaf litter of broadleaf forests or tucked into the deep crevices of decaying logs. It is frequently recorded at moderate to high elevations where the air remains cool and damp.
### Behaviour Observed at night, this earwig is a nimble navigator of the forest floor. During the day, it is intensely thigmotactic—meaning it craves the physical sensation of being squeezed into a tight crack. Like many in its family, the *Allodahlia* mother is a devoted parent. She will guard her cluster of pearly white eggs in a subterranean chamber, meticulously licking them to prevent fungal growth—a rare display of maternal investment in the insect world.
### Diet As a generalist scavenger, its diet is opportunistic. It utilizes its sensitive antennae to forage for decaying plant matter, fungal spores, and small, soft-bodied invertebrates. It plays a vital role in the "cleanup crew" of the forest floor, recycling nutrients back into the soil.
### Fascinating Fact The "origami" wings of *A. scabriuscula* are a mechanical marvel. Despite appearing wingless, it hides complex, fan-like hindwings folded ten times beneath its tiny wing covers. To fly, it must use its forceps to help tuck these delicate membranes back into place—a feat of biological engineering that would make a NASA engineer envious!