The linear earwig (Doru lineare) is a slender, elongated earwig species native to the Americas, found from the southern United States through Central and South America. In Arizona, it is found primarily in the warmer desert regions of the state, particularly in the Sonoran Desert zone. Adults are 1/2–3/4 inch long, slender and elongated compared to other earwig species, with a pale yellowish-brown to tan coloration and darker markings. The forceps are slender and relatively straight. The linear earwig is strongly associated with grasses, corn, and other monocot plants, where it hides in the leaf axils and between tightly rolled leaves during the day. It is a predatory species that feeds on aphids, mites, and other small insects found on its host plants, and is considered beneficial in corn and grain crops where it helps control pest populations. In Arizona, it is found in agricultural areas growing corn and sorghum, in riparian areas with dense grass and reed vegetation, and occasionally in irrigated suburban landscapes with ornamental grasses. It is rarely a household pest and is not commonly encountered indoors.
👁Warning Signs
Slender pale tan earwigs found in leaf axils of corn, grasses, or ornamental grasses. Associated with agricultural corn and grain crops. Rarely found indoors. Beneficial predator in agricultural settings.
⚠Health & Property Risks
Not a pest — beneficial predator in agricultural and garden settings. Rarely enters homes. No structural damage, not venomous.
Prevention Tips
No prevention needed — a beneficial species in agricultural and garden settings.
🛡Professional Treatment
No treatment needed. Preserve in agricultural settings where it provides natural pest control.
Frequently Asked Questions — Linear Earwig
The Linear Earwig (Doru lineare) is pale yellowish-brown to tan with darker markings; slender elongated body; straight forceps and typically measures 1/2–3/4 inch. The linear earwig (Doru lineare) is a slender, elongated earwig species native to the Americas, found from the southern United States through Central and South America. In Arizona, it is found primari.
The Linear Earwig is generally low-risk, but caution is still advised. Not a pest — beneficial predator in agricultural and garden settings. Rarely enters homes. No structural damage, not venomous.
In Arizona, linear earwigs are most often encountered in the following situations: Slender pale tan earwigs found in leaf axils of corn, grasses, or ornamental grasses. Associated with agricultural corn and grain crops. Rarely found indoors. Beneficial predator in agricultural settings.
The Linear Earwig is most active during: Most active during warm growing season; associated with corn and grass growth cycles. Arizona's warm desert climate can extend activity periods compared to other states, so year-round vigilance is recommended in the Phoenix metro and surrounding areas.
No prevention needed — a beneficial species in agricultural and garden settings.
No treatment needed. Preserve in agricultural settings where it provides natural pest control.
Yes — earwigs can use their rear pincers (cerci) defensively if handled, but the pinch is generally harmless to adults and rarely breaks skin. They do not sting, are not venomous, and pose no significant medical risk. Their alarming appearance is far worse than their actual threat.
Dealing with Linear Earwig?
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