Lacewing larvae are small, elongated insects commonly found in gardens and agricultural areas. These larvae are brownish or grayish and have a distinctive alligator-like appearance. They possess prominent jaws.
The Truth About Lacewing Larva Bites
Lacewing larvae can bite humans, though such occurrences are rare and usually accidental. Their mouthparts are specialized, featuring large, sickle-shaped mandibles designed for grasping and piercing insect prey. These mandibles inject digestive enzymes into prey, then suck out the liquefied contents. While effective for hunting smaller insects, these mouthparts are not primarily adapted for biting humans defensively or aggressively. The bite is not venomous or toxic to humans, as the enzymes injected are meant for insect digestion.
What Happens After a Lacewing Larva Bite?
A lacewing larva bite is mild, described as a slight prick or a sensation similar to a pinprick. It results in a small, red bump and may cause some itching, much like a mosquito bite. There are no lasting effects, significant pain, or swelling. The symptoms subside within a few hours or, at most, a day or two. If a bite occurs, washing the area with soap and water is recommended to prevent minor irritation.
Why Lacewing Larvae Might Bite Humans
Lacewing larvae typically bite humans by accident. They are not aggressive towards people and do not seek out humans to bite. A bite might occur if a larva feels trapped, such as when it is pressed against the skin, or if it is exploring a surface. Their natural predatory behavior involves actively searching for and consuming insect prey, and a bite on human skin is a misdirected action rather than an intentional attack.
Lacewing Larvae: Beneficial Garden Allies
Lacewing larvae are valued as natural predators in gardens and agricultural environments. They are referred to as “aphid lions” due to their voracious appetite for aphids, their primary food source. In addition to aphids, their diet includes other common garden pests like mealybugs, spider mites, thrips, whiteflies, and the eggs and larvae of various insects. Each larva can consume hundreds of pests during its developmental period, significantly contributing to natural pest control. Their presence helps manage pest populations without the need for chemical interventions, making them beneficial insects for gardeners.