European Earwig

📋Detailed Description

The European earwig (Forficula auricularia) is a slender, elongated insect measuring 12–15 mm in length, with a flattened, reddish-brown to dark brown body and pale yellowish-brown legs. Its most distinctive anatomical feature is the pair of curved, forceps-like cerci at the tip of the abdomen, which are more robust and strongly curved in males and straighter in females. The head is equipped with long, thread-like antennae composed of 12–15 segments, and the mouthparts are adapted for chewing. The forewings (elytra) are short, leathery, and cover only part of the abdomen, while the hindwings are membranous and intricately folded, rarely used for flight. The European earwig is primarily nocturnal, seeking shelter during the day in moist, dark crevices. It is an opportunistic omnivore, feeding on a wide range of plant material, decaying organic matter, small insects, and aphids. Socially, earwigs exhibit subsocial behavior, particularly females, which display notable maternal care by guarding and grooming their eggs and young nymphs. The species is highly adaptable, thriving in diverse habitats including gardens, agricultural fields, forests, and urban environments. Its ability to exploit both natural and human-modified habitats has contributed to its widespread distribution across Europe, North America, and other temperate regions. The European earwig is a species complex, with genetic studies revealing the existence of at least two cryptic lineages. This insect plays a dual ecological role, sometimes acting as a pest by damaging crops and ornamental plants, but also serving as a beneficial predator of aphids and other garden pests.