No. Killing a praying mantis isn’t against the law anywhere in the US, despite a rumor many people grew up hearing.198.1 The Hawk. Is It Actually Illegal to Kill a Praying Mantis in New York? The legal rules that do exist around mantises cover buying, shipping and releasing them, not swatting one in your yard. Whether you should kill one is a separate question, because some of the most common mantises here are introduced species that eat plenty of helpful insects.
Why No Law Protects the Praying Mantis
No federal law makes it a crime to kill a praying mantis.2lawlegalvoice.com. Is It Illegal to Kill a Praying Mantis? A Simple Legal Guide for Everyday People No state law has ever prohibited it either, New York included.3Brody Brothers Pest Control in Baltimore. Are Praying Mantises Endangered? Is It Illegal to Kill Them? Laws that protect insects generally cover only species listed as threatened or endangered, and none of the mantis species in North America are endangered.4Brody Brothers Pest Control in Baltimore. Are Praying Mantises Endangered? Is It Illegal to Kill Them? That leaves no legal consequences for killing a mantis on your own property.5Brody Brothers Pest Control in Baltimore. Are Praying Mantises Endangered? Is It Illegal to Kill Them?
Connecticut made the European mantis its official State Insect in 1977.6CT.gov – Connecticut. The State Insect South Carolina named the native Carolina mantid its state insect in 1988 for its role in controlling crop pests.7State Symbols USA. Carolina Mantid A state symbol title carries no legal protection, which may be why people assume one exists.
Calling the killing of one cruel is a moral view, not a legal rule.
The same goes for accidents. Swatting, stepping on or spraying a mantis in your garden carries no penalty, and you don’t need a permit or have to report anything. Pesticides that kill mantises are regulated for how you apply them, such as following the label, and that is true whether the bug sprayed is a mantis or an aphid. Local rules, like park regulations or a landlord or HOA policy, are about the place, not about mantises specifically.
Where the Illegal-to-Kill Rumor Came From
The idea that mantises are endangered and protected by law began circulating in the 1950s.8Brody Brothers Pest Control in Baltimore. Are Praying Mantises Endangered? Is It Illegal to Kill Them? It may have been started to stop homeowners from killing an insect that eats less pleasant bugs.9Brody Brothers Pest Control in Baltimore. Are Praying Mantises Endangered? Is It Illegal to Kill Them? Gardeners had long seen mantises as helpful because they eat crop pests and reduce the need for pesticides.10ThoughtCo. Is Killing a Praying Mantis Illegal? To many of them, killing one felt like a crime even without a law.
In southern Africa the mantis was treated as a god because of its praying posture.11ThoughtCo. Is Killing a Praying Mantis Illegal? Ancient Greeks thought a mantis could show lost travelers the way home, and ancient Egyptians saw it as a minor god leading souls to the underworld.12ThoughtCo. Is Killing a Praying Mantis Illegal?
Adding a legal threat made a request to leave bugs alone sound serious, so adults had reason to tell children it was against the law. It survives today because it gets passed down as fact and repeated without anyone checking a statute.
When Killing a Mantis Could Be Against the Rules
Protected land is the main exception. In national parks, state parks and wildlife refuges, you generally can’t disturb wildlife, including insects, without permission.13lawlegalvoice.com. Is It Illegal to Kill a Praying Mantis? A Simple Legal Guide for Everyday People Catching or killing a mantis on a hike there could break park rules.
Looking at a mantis and photographing it from where you stand is fine. If you want to collect insects, ask a ranger first; most parks have a permit process.
State definitions of wildlife vary. Some states, like Alaska, define protected wildlife broadly enough to include insects.14Animal Law & Historical Center. Overview of Wildlife Law Virginia, by contrast, requires no wildlife permit to collect insects, except threatened or endangered species.15Virginia Department of Wildlife Resources. Overview: Collecting, Exhibiting, and Releasing Wildlife If you collect insects, your state’s wildlife agency is the place to check.
Other countries differ. In some, mantises have protected status.16Brody Brothers Pest Control in Baltimore. Are Praying Mantises Endangered? Is It Illegal to Kill Them? Even so, protection is the exception: in Britain fewer than 80 of about 24,000 land insect species are legally protected.17Royal Entomological Society. Insects and the Land: Exploring gaps in terrestrial invertebrate protection in Britain – Antenna: Volume 50 (1) 2026 – Royal Entomological Society
Should You Kill a Mantis in Your Garden
Mantises are ambush predators that eat anything they can catch.18Growing Small Farms. Challenging the Conventional Wisdom About Praying Mantids They are as likely to eat a butterfly or bumblebee as a nuisance caterpillar.19Extension. Should I Release Praying Mantis into My Garden? Over 75% of two non-native mantids’ diet was plant-eaters, other predators and pollinators.20Food Webs. Diets of two non-native praying mantids (Tenodera sinensis and Mantis religiosa) show consumption of arthropods across all ecological roles That makes them at best a mixed blessing in the garden.21Extension. Should I Release Praying Mantis into My Garden?
Large mantises can also catch small birds. They have been recorded doing so on every continent but Antarctica.22The Wilson Journal of Ornithology. Bird Predation By Praying Mantises: A Global Perspective Over 70% of those reports came from the US, often at hummingbird feeders and flowers.23The Wilson Journal of Ornithology. Bird Predation By Praying Mantises: A Global Perspective Most captured birds were killed and eaten, and about 18% were freed by people.24The Wilson Journal of Ornithology. Bird Predation By Praying Mantises: A Global Perspective If you see a mantis on your feeder, moving it away can save a hummingbird.
There are some upsides. Mantises are important predators of adult spotted lanternflies in China, the pest’s native range.25PubMed. Predation efficiency of praying mantises as important natural enemies of spotted lanternfly, Lycorma delicatula They may someday help against lanternflies, though that isn’t proven in US yards.
The large mantises most people notice are often non-native species, while the Carolina mantid is a smaller native one that is easy to overlook. If you can’t tell which species you have, leaving it alone is a reasonable default, since one adult has limited effect on the garden.
A middle path works well. A native Carolina mantid can simply be left alone. Mantises near hummingbird feeders are worth relocating, and removing non-native egg cases matters more than killing single adults. To move one, hold a stick or twig in front of it and let it step on, instead of pinching it, since grabbing its body can injure it. Place it on a shrub or tree well away from feeders and flowers where hummingbirds and pollinators gather. Move it a good distance, since it may walk back.
Buying mantises for pest control tends to disappoint. Mantises eat each other, so numbers stay low after release, and they wander and won’t stay on the pest you want controlled.26Extension. Should I Release Praying Mantis into My Garden? Store-bought egg cases are often the non-native Chinese mantis, and experts suggest caution with large non-native mantids in gardens.27The Wilson Journal of Ornithology. Bird Predation By Praying Mantises: A Global Perspective
How to Tell Native and Non-Native Mantis Egg Cases Apart
Several US mantises are introduced. The European mantis has lived on the US east coast since at least the 1890s, first brought in to eat pests.28The Canadian Entomologist. Mantid expansion into North American salt marshes It has since spread along the whole US west coast.29The Canadian Entomologist. Mantid expansion into North American salt marshes Higher numbers of non-native mantids are predicted to reduce pollinators and other insects.30Biological Invasions. Standing on an invasion front: predicting potential impacts of praying mantids using fuzzy interaction webs
An egg case is the foamy, hardened case a female lays her eggs in. The shapes differ by species:
- Chinese mantis: round, roughly textured, uniformly tan.31Brandywine Conservancy. Preying on Invasive Mantis Egg Masses
- Carolina mantid (native): smooth, teardrop-shaped, with a lightly colored center.32Brandywine Conservancy. Preying on Invasive Mantis Egg Masses
- European mantis: like the Carolina but more one-color.33Brandywine Conservancy. Preying on Invasive Mantis Egg Masses
- Narrow-winged mantis: elongated with dark stripes along the center.34Brandywine Conservancy. Preying on Invasive Mantis Egg Masses
Compare the overall shape first, round and rough versus smooth and teardrop, because color alone can fade or vary with weather. Some cases look similar, such as the Carolina and the European, so if you are unsure, treat the case as native and leave it. A photo checked against a reliable regional guide or a local extension office can settle a doubtful case.
Late fall and winter are the easiest time to search, because once leaves fall the cases stand out on bare twigs. Look on shrubs, fence rails, plant stems and the sheltered sides of branches. Check the shape against the list, and remove non-native ones before spring hatching.
Some gardeners attach Chinese mantis egg cases to suet feeders for woodpeckers.35Growing Small Farms. Challenging the Conventional Wisdom About Praying Mantids Others cut them open and soak them in water for a few days.36Growing Small Farms. Challenging the Conventional Wisdom About Praying Mantids Leave native Carolina mantid cases in place.
The Laws That Do Apply to Buying and Releasing Mantises
A federal permit, PPQ 526, is required to import, move across state lines or release most plant-related insects.37USDA APHIS. Insects and Mites Federal regulators treat predatory insects like mantises as biological control organisms, so no mantis species can move between states without a permit.38LOBO//MANTIS. Are Praying Mantis Legal? State Laws & Permits Many US vendors hold the required permits.39USDA Animal and Plant Health Inspection Service. Invertebrate Pets The reasoning is that moving living insects between states can introduce species into places where they did not live before.
Pet mantises have their own wrinkle. Owning some exotic invertebrates may need a permit or be illegal.40USDA Animal and Plant Health Inspection Service. Invertebrate Pets Contact USDA plant protection before buying an exotic mantis as a pet. The pet insect market is still nearly unregulated worldwide.41Journal of Orthoptera Research. The pet mantis market: a first overview on the praying mantis international trade (Insecta, Mantodea)
A careful buyer asks whether the seller has federal and state permits, and whether it can legally ship to your state, since rules can differ. Buy from a seller who is open about where the mantises come from and what species they are, which tells you whether it is native. Don’t mail mantises to friends in other states, and never release exotic pet mantises outdoors. Native species are the safest choice for a garden.