Do Moths Ever Bite? What You Need to Know (2024)

Most of us are familiar with the sinking feeling of finding moth holes in a beloved item of clothing. Fabric that’s kept in closets, drawers, or other storage spaces are subject to becoming moth-eaten, creating tiny holes that leave a patchwork of damage in your clothing fibers.

It might surprise you to know that, in general, adult moths don’t actually bite. So what’s creating those moth holes? And can moths pose a danger to your health in other ways? Keep reading to find out.

Moths and butterflies are classified as one order of insects. These types of insects are identified by their scaly wings that emerge when they’re adults. Many species of moth are nocturnal, which is why you’ll often see them drawn to outdoor light fixtures like street lamps on warm evenings.

The vast majority of adult moths don’t have mouths and are incapable of biting anything, much less you. For the most part, they also don’t sting. However, moths begin life as larvae, called caterpillars, before they go through a metamorphosis process and emerge with wings.

Some of these caterpillars are responsible for the holes you find in clothing. Not only can they eat through fabrics, but a few of them can cause skin irritation and worse in humans.

However, the irritation is caused by stings, not bites. Out of 165,000 moth species, only about 150 of them can sting. Within the United States, more than 50 caterpillar species are known for causing a painful sting.

As caterpillars mature and become moths, they lose their tiny teeth and their mouths become atrophied and disappear. Adults moths use a long, straw-shaped organ to drink nectar and other liquids. That’s why almost all the adult moths you may see flying around aren’t physically capable of biting you.

There are notable exceptions to this rule. Moths from the genus Calyptra, also known as vampire moths or fruit-piercing moths, are equipped with a feeding tube (proboscis) with tiny projections that can penetrate human skin.

These moths are native to some areas of Europe, Africa, and Asia, and they mostly prefer to use their proboscis to suck out the nectar from sweet fruits.

Most adult moths aren’t physically able to bite you. And, besides flying out of a place you don’t expect and startling you, many species of adult moths can’t do much to harm you in other ways. However, there are some things to be aware of.

Lepidopterism is a skin condition that’s been linked to contact with moth and butterfly caterpillars and less commonly adult moths.

To defend against predators, some species of moth have spiny hairs that can easily become lodged in your skin. This is usually quite harmless, but it can provoke a reaction of red patches of bumps that looks similar to hives. These bumps may burn and sting for several minutes.

In most cases, lepidopterism may simply be an allergic or nonallergic contact reaction to the hairs that certain moth larvae produce. A select few breeds of moth caterpillars have toxic venom coating their spines.

Injury from exposure to these moths’ spines can be significant. Giant silkworm moth larvae and flannel moth caterpillars are specifically noted for their ability to cause a painful sting.

Most types of moths are only poisonous if they’re consumed. This may be especially true if the moth or moth caterpillar has visible hairs or spines.

If your dog eats a moth every once in a while, it probably won’t have much of an effect on their system. But try to prevent them from making a habit of eating big, hairy moths.

You should also keep your dog and their food away from moth larvae, as they can contaminate food and cause intestinal problems.

Don’t let your child play with any type of moth. As curious as kids are, your child may be most at risk for oral exposure to a stinging caterpillar, which can be painful and have immediate adverse effects.

Lepidopterophobia refers to the fear of moths and butterflies, which can be very real and affect your mental health. Like any phobia, lepidopterophobia can cause panic attacks, anxiety, insomnia, and other symptoms.

Moths are an important source of food for many animals. As for moths themselves, they mostly eat plant matter like leaf fibers in their caterpillar (larvae) stage. The holes you find in your clothes are actually from hungry baby moths eager to fill up before they head to their cocoon.

Caterpillar moths might be “very hungry,” as the saying goes, but they’re equipped to do one thing: eat plant fibers and fabrics. You don’t have to worry about a caterpillar biting you.

If you keep finding that your clothes have been moth-eaten, there are some simple actions that you can take.

Keep adult moths out of your home

Even though adult moths aren’t eating your clothes, they may be leaving eggs behind in the fibers of your favorite garments. Make sure to seal screens and keep patio doors shut in the warmer months, when moths tend to try to sneak in.

You might also want to consider getting a moth-zapper or mosquito-killer device to hang in your outdoor space if moths have been a serious problem.

Clean and care for clothes if you suspect you’ve been near moths

Brush clothes that are made of natural fibers like wool or fur after you’ve been in an area where moths might have been present. When you store your clothes, wash them before putting them away, and always keep them in a dry, air-tight container or cedar chest.

Take steps if you see moths in your home

If moths do get in your house, take steps to protect your clothes and other fabric items. Cedarwood repels moths because of the cedar oil inside. You can store your clothes in airtight cedar chests to prevent moth damage.

Cedar chests can get expensive, and they aren’t always completely effective, especially over time. You might want to consider using cedar blocks in your storage containers or even use cotton balls infused with cedar oil to keep moths away.

Out of the 165,000 moth species that have been identified, only a very small few are capable of stinging humans. Moth larvae are the culprit when it comes to what’s eating your clothes.

Even though most moths don’t bite, try to avoid having them in your house. Moths may cause allergic reactions and some are toxic to consume.

Do Moths Ever Bite? What You Need to Know (2024)

FAQs

Do Moths Ever Bite? What You Need to Know? ›

Moths are mostly harmless, fluttering insects. Because a moth's mouth parts are so small, it is not physically possible for it to bite a human, with few exceptions, including the “vampire moth." The most that will happen is the moth will leave behind a little dust as it flies away.

What happens if you get bit by a moth? ›

To defend against predators, some species of moth have spiny hairs that can easily become lodged in your skin. This is usually quite harmless, but it can provoke a reaction of red patches of bumps that looks similar to hives. These bumps may burn and sting for several minutes.

Do common moths bite? ›

Moth larvae can also be dangerous and cause systemic and skin reactions. But if you're wondering, “Do moths bite?” the answer is no. Adult moths don't bite or sting.

Do moths bite you in your sleep? ›

Rest assured, the kinds of moths that flutter around your room at night won't sting, bite, or otherwise hurt you. Still, you should probably try to catch and remove moths in your bedroom. After all, who wants to wake up to that throughout the night? No thanks!

Do clothes moths bite humans? ›

Clothes moths aren't considered dangerous to people. They don't bite, sting, or contaminate food sources. However, clothes moths are considered to be dangerous to personal property. Their larval stage is the stage of development that causes the most damage to fabrics.

What kind of moth bites? ›

Moths are mostly harmless, fluttering insects. Because a moth's mouth parts are so small, it is not physically possible for it to bite a human, with few exceptions, including the “vampire moth." The most that will happen is the moth will leave behind a little dust as it flies away.

How do you treat moth bites? ›

Both physicians advise that a person stung should apply an ice pack, then a paste of baking soda and water, followed by hydrocortisone cream. “I also recommend an oral antihistamine, such as Benadryl if the sting is severe, and Ibuprofen can be given orally if it is needed for pain,” says Dr. Kerut.

What insect looks like a moth but bites? ›

The vampire moths belong to the genus Calyptra, which contains 17 species. The genus is contained within the subfamily Calpinae of the family Erebidae. The genus is also a member of the Calpini tribe.

Can moths go in your ear? ›

A moth flying in your ear is not only possible, but it happens more often than you might think! While most moths are harmless, there are some species that can cause serious problems if they end up in your ear. Moths are attracted to the warmth and darkness of your ear, and can sometimes cause pain or irritation.

Is it bad to have a moth in your room? ›

While they are generally harmless, they can be a nuisance. If you find a moth in your house, there is no need to panic. Simply open a window or door to let it out.

What does a moth bite look like? ›

Moth bites usually appear as small, red bumps on the skin. They may be itchy or painful, and can sometimes swell up and turn into blisters. In rare cases, a moth bite may cause an allergic reaction, resulting in symptoms such as difficulty breathing, swelling of the face or throat, and dizziness.

Do moths lay eggs on humans? ›

While moths may be attracted to heat and light, they do not lay their eggs on humans.

Can clothes moths make you sick? ›

CAN CLOTHES MOTHS MAKE YOU SICK? For those of you who suffer from skin or respiratory allergies, it is possible that the presence of clothes moth adults and larvae can exacerbate symptoms.

Can moths carry diseases? ›

Now here's the gross part. Since moth egg casings and larvae are small, there is a strong possibility that you may have ingested one at some point in your life. However, moths do not carry diseases like other insects, such as co*ckroaches and flies.

Can moths get you sick? ›

Adult moths are mostly harmless to humans, but their larvae may cause minor skin irritation. If you come into contact with the hairs of a caterpillar, it is possible that you will develop an allergic reaction.

Is moth killer toxic to humans? ›

The active ingredients in these products, naphthalene or dichlorobenzene, vaporize at room temperature to produce a strong odor. The chemicals can be harmful even if you breathe in the vapors or touch them directly with your skin.

Are moths a threat to humans? ›

However, ancient humans are known to have hunted other highly dangerous creatures such as the woolly mammoth, which were arguably even more dangerous with 30 their great tusks, as well as the fact that mammoths were social creatures tending to roam in packs and protect one another.

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