8 Tiny Green Bugs That Bite (One Of Them Is Deadly)

In this guide you’ll find a comprehensive list of tiny green bugs that bite humans.

Majority of these bugs are plant pests.

Yet, when they come in contact your skin, they wouldn’t think twice to insert their mandibles and beaks and leave a painful bite.

And things can get a little itchy if they these tiny green bugs sneak inside your home.

In this post, you’ll also find out what these biting green bugs are and how to identify them.

You’ll also learn which of these bugs are quite deadly and some cool hacks to protect yourself from these bugs’ bites.

Keep reading.

8 Small Green Bugs That Can Bite You

Here’s the list of 8 tiny green bugs that bite –

  1. Green leafhoppers
  2. Pale green assassin bugs
  3. Green thrips
  4. Katydids
  5. Ambush bugs
  6. Green Tiger beetles
  7. Dogbane leaf beetles
  8. Sweat bees

All these bugs hide and breed outdoors. Each of them has a specific time of the year when they’re most active.

Let’s find out how and when these bugs bite and the solutions for these bug’s bites.

Green Leafhoppers

Green Leafhopper - Tiny Green Bugs That Bite

Green leafhoppers are tiny green bugs that grow up to 3-4 mm in size. Apart from green, these bugs can also be yellow and brown.

Green leafhoppers look like thin and wedge-shaped with their wings covering their entire abdomen.

They’ve also got strong hind legs that they use to jump from one place to another.

Green leafhoppers are garden pests. They feed on the leaves of fruit and vegetable plants. But they can also cause damages in the leaves of flower plants.

Green leafhoppers can be hard to detect as they camouflage well their host plants.

Many homeowners confuse green leafhoppers with aphids and lygus bugs. But there’s a crucial difference between green leafhoppers and these two bugs.

The most startling difference is that leafhoppers can walk and jump sideways, but aphids and lygus bugs can’t.

Lygus bugs have a pair of antennae which the leafhoppers don’t have. Whereas aphids have two appendages at their rear end which is not present in leafhoppers.

Damages caused by leafhoppers make the plants’ leaves pale and tip of the leaves twirl. Failing to get rid of leafhoppers can even cause the plant’s leaves to wither and die.

Green leafhoppers suck the sap of plants which can make the plants weak.

Green leafhoppers also secrete honeydew which causes molds on plants. The honeydew on the plants attracts the bugs that eat it, especially ants.

In agricultural land, leafhoppers can also spread diseases on crop plants.

Green Leafhoppers Bite

Green leafhoppers bite humans. Their mouth can puncture the human skin.

They can bite you while you’re in the process of getting rid of them without wearing appropriate clothing.

Also, light from your home can attract these bugs. Once inside your home, the chances of green leafhoppers biting you’re the highest.

But the best part is that their bite is not lethal. A general bug bite cream on the bitten area will pacify any itching that you may get after the bug bite.

Green leafhoppers are active starting from the spring month till late fall.

So, it’s always advisable to install window shields on the windows facing the garden so that these bugs don’t enter your home.

During the winter months, these bugs overwinter or become inactive.

Pale Green Assassin Bug

Pale Green Assassin Bug - Tiny Green Bugs That Bite

Pale green assassin bugs are a common assassin bugs in the yards and garden of the Eastern US.

These bugs are native to North America that are active during the summer months.

Pale green assassin bugs are green, and they grow between 12 and 18 mm in size.

Some pale green assassin bugs can also have distinctive brown, reddish or yellowish marks or spots on their backs.

Their body shape is like most assassin bugs. They’re slender with thin long body and visible legs.

Pale green assassin bugs love to hide in decaying organic matter like foliage where they lurk for their prey.

Being predators, you can consider pale green assassin bugs as a beneficial bug.

These bugs hunt and eat plant damaging pests like aphids, leafhoppers, weevils, worms, and caterpillars.

You’ll find these bugs lurking and waiting in specific plants too.

Plants like alfalfa, marigold, dandelions, goldenrod, tansy, dill, and fennel are some of their preferred plants.

But pale green assassin bugs don’t damage plants. However, when their numbers increase these bugs can sneak inside your home.

Thin gaps and cracks on your home’s walls and open windows and doors are regular entry points for these bugs.

But experts say that these bugs can’t survive in your home for long because of lack of prey and the interior of your home isn’t their ideal habitat.

To stop them from entering your home, seal cracks and gaps on the walls, windows, and doors facing your yard or garden.

There’s no specific insecticide available for assassin bugs.

But if you find one inside your home just scoop it off with broom or use a vacuum cleaner on it to get rid of it. Make sure that you don’t touch it or try to handle it with bare hands.

Inside your home these bugs don’t bring any infestation risks.

It means that they can’t cause any damage inside your home. And they can’t reproduce.

Pale Green Assassin Bug Bite

Pale green assassin bugs can bite you, but these bugs are not aggressive.

If you try to handle them or if they get pressed on your skin, chances are that you’ll receive a painful bite from the pale green assassin bugs.

Like all assassin bugs, pale green assassin bugs have strong mouth parts with proboscis or beak on their mouth.

They use it to hunt and paralyze their prey and when they’re biting humans and animals.

The pale green assassin bug is painful. It leads to itching and swelling which can last for a couple of days.

But, in general, pale green assassin bugs are harmless. Their bites don’t transmit any diseases, and certainly not chagas disease.

To relieve the pain from the pale green assassin bug bite, apply bug bite ointment or an antiseptic on the bite wound.

Applying ice packs on the bite wound also helps in reducing the swelling.

Green Thrips

Green Thrips

If you’ve got a flower of vegetable garden in your property, then you’re no stranger to thrips.

Thrips are tiny bugs that come in different colors like black, white yellow, dark brown, and green.

There are 5000 species of thrips. But the green thrips are common in the south where they cause serious damages to the plants.

Thrips are tiny (they grow only up to 1/20th of an inch or 5 mm), long, and slender insects with visible legs attached to their thorax and distinctive conical head.

The mouth of thrips has mandibles that they use to feed on pollen, leaves, flowers, fruits, and on vegetables like onions, carrots, melons, and peas.

Thrips damage on plants is visible by drying of leaves, distortion in the leaves’ shape, small pale spots on the leaves, and they even stunt the plant’s growth.

To get rid of thrips in your garden, you’d need to spray water mixed with neem oil and dish soap.

However, there are certain beneficial species of thrips too. (add link)

Green Thrips Bite

Thrips bite humans only to determine if they’ve landed on a plant or not.

If thrips land on you then they can occasionally bite. It’s their way of determining if you’re the food source.

But thrips bite in rarest of occasions.

Thrips bite is harmless. They don’t suck blood. Neither do they inject anything in your skin.

In fact, thrips mouthparts are not strong enough to puncture your skin.

Thrip bite come across as a slight pinch on the skin.

And can thrips enter your home?

Yes, thrips can enter your home. It happens when you introduce some plants with thrips from outdoors to your home.


Katydids- Tiny Green Bugs That Bite

Katydids, also known as long-horned green grasshoppers, are outdoor green bugs that are active during the summer months.

Katydids, like crickets, make a chirping sound that sounds like kat-i-did. That’s how they got their names.

Katydids make sounds by rubbing their forewings against each other and by contracting their bodies a bit. That contraction produces a clicking sound which some people like.

But to many people it can be annoying as katydids make those sounds non-stop from early morning.

These sounds are mating sounds that male katydids make to attract a female.

There are more than 1000 species of katydids in the planet, but in the US, there are only three species of katydids.

These bugs are common in states with warm and tropical weather. So, in California, Arizona, Texas, and Florida, you’ll find them in your garden during the summer months.

Katydids are not typically tiny bugs. A full-grown katydid can grow up to two and half inches in length.

However, not all katydids can grow that big.

Katydids are green, with a leaf-shaped body. Their legs are quite sturdy and like the grasshoppers and the crickets, katydids use their hind legs to jump.

While at rest, they look pretty tall, and they stand a bit elevated from the ground.

Katydids are common in gardens and orchards with citrus trees and herbaceous plants.

These green bugs are not plant damaging bugs as such, but katydids feed on the leaves of the plants.

It’s quite hard to spot them because given their body shape, they can camouflage well with the leaves.

Katydids don’t cause any serious damage to the plants apart from chewing a bit on the plants’ leaves in the summer.

Katydids also eat small insects and pests that can cause damage to plants. So, in a way, they’re beneficial bugs for your garden.

However, they are not so kind with young citrus trees.

So, many people consider katydids as garden pests.

To get rid of katydids from your garden, spray a mixture of white vinegar (or peppermint oil) and water on your plants.

It’ll kill both the adults and the larvae of these green bugs.

Katydids Bite

Katydids do bite but only when they feel threatened or are under stress.

These bugs are not aggressive at all, and many people keep them as pets too!

Bites from katydids are rare. But if they bite you, it’ll feel like as painful as a mosquito bite.

Katydids’ bites are non-poisonous, and you don’t need any medical attention after the bite. Neither will there be any welts, itching, redness, or swelling on the bitten area.

Washing the bitten wound with warm water and soap, and (this isn’t necessary) applying a generic ointment is enough.

Ambush Bugs

Ambush Bug - Tiny Green Bugs That Bite

Ambush bugs, cousins of assassin bugs, are garden bugs that got their names from their way of hunting other insects.

These bugs will lie motionless on leaves and flowers. They’ll ambush or pounce on insects and flies that come within their reach.

Ambush bugs look menacing. With their jagged bodies and thick forelegs like those of praying mantises, these bugs are able predators.

In the US, there are more than 100 species of ambush bugs. These bugs can show up in the gardens and yards from summer to late fall.

They become inactive during winters when they overwinter.

Ambush bugs come in different colors like yellow, red, brown, white, and green. Some of them can also have dark spots on their back as well.

The males are darker than females. Many believe that these bugs change their color like chameleons to match the color of the plant they’re sitting on.

Other’s believe that these bugs specifically choose those plants that matches their color so that they can be hard to detect by their prey.

Point to note here is that the young ambush bugs that are green. With successive molting their size increases and their color changes to different colors.

Ambush bugs grow up to half an inch in length. And given their serrated bodies and green color, they can be very hard to detect when they’re sitting idle on the leaves.

You’ll find ambush bugs sitting motionless on flowers too where they wait for the bees.

Ambush bugs fall in the category of beneficial insects because, like other assassin bugs, ambush bugs hunt and eat plant damaging bugs and insects.

But they hunt bees, which are pollinators, so many gardeners don’t want them in their garden.

Ambush bugs are not at the top of the food chain in your garden. They also have predators like praying mantis, rodents, and spiders.

Ambush Bugs Bite

Like assassin bugs, ambush bugs too can land a painful bite. But they don’t bite humans purposefully.

When pressed against the skin, these bugs can bite under panic. Being hunters, ambush bugs do have strong mouthparts and claws that can break into your skin.

Outdoors, or while working in your garden, some of these bugs may land up on your body.

But instead of slapping on it under panic, brush it off.

Ambush bugs have a bad reputation because of their scary look. Many people have even termed these tiny green bugs as homicidal killers!

Ambush bugs don’t kill people.

The pain from ambush bug bite is pretty intense that causes both redness and swelling. However, ambush bugs’ bite is not poisonous.

If ambush bugs bite you, washing the bitten area and applying antiseptic gives a lot of relief.

To get rid of ambush bugs, keeping your yard or garden clean is the key.

These bugs hide in foliage too, so removing any organic debris goes a long way to keep ambush bugs and many other types of assassin bugs away.

Light from your home can attract ambush bugs to your home. So, using a bug-repellent light bulb in places like your patio deck will not draw these bugs inside your home.

Spraying a mixture of water and peppermint oil on plants is a better option to get rid of these bugs than using pesticide sprays.

Green Tiger Beetles

Green Tiger Beetles

Green tiger beetles or the six-spotted green tiger beetle is a gorgeous looking beetle that is truly beneficial for your garden.

You’ll find green tiger beetles across mostly in the Midwest and in the Eastern US.

However, the sightings of green tiger beetles in your property aren’t as regular as the other bugs in the list.

These beetles live near the woods. So, unless you’re living near the woods the chances of them sneaking into your yard or garden is pretty low.

Green tiger beetles are prolific predators. They’ll hunt down, and eat, pests and bugs in your garden.

These tiny green bugs grow between ½ inches and 5/8 inches. And they’re active starting from the spring.

Green tiger beetles can look quite menacing. With their shinny green color, visible mandibles, and antennae, these beetles look able hunters.

Green tiger beetles are attracted to artificial light. So, during the summer months you’ll find them hanging around near porch lights hunting other bugs and insects.

That’s the time when they can sneak inside your home. But, like the other bugs in the list, these bugs don’t bring any infestation risk with them.

So, do green tiger beetles bite? Let’s find it out.

Green Tiger Beetles Bite

Given their sharp and strong mandibles, green tiger beetles can bite humans.

But these beetles will bite only when they feel threatened by you or when you try to handle them.

Usually, green tiger beetles are harmless to humans. And their bites don’t cause any infection on diseases.

Washing the bitten area with warm water and using antiseptic on the bitten wound are good enough solutions to their bites.

Should you try to get rid of them in your yard or garden?

You don’t need to. Being insectivores, these beetles don’t harm plants at all.

It’s the other way around. They help in keeping your plants safe by hunting and eating the bugs that are harmful for your plants.

Dogbane Leaf Beetle

Dogbane Leaf Beetle

Dogbane leaf beetles are the most beautiful insect in this list. These beetles are small, bright, multicolored and oval shaped.

You’ll find these beetles in eastern and northeastern US and even in southeastern Canada.

These tiny bugs grow only up to a quarter of an inch long and they are shiny red, gold, and green.

Green is the dominant color on the dogbane leaf beetles. Their heads are bright green, and the mixture of colors are mostly on their thorax and back.

Dogbane leaf beetles got their name from their habit of feeding only the dogbane plant leaves in the meadows. They can also eat milkweed leaves.

Dogbane leaf beetles are brightly colored which signals two things. First, these beetles are highly poisonous and second, they taste really bad for their predators.

These two characteristics make these beetles quite carefree. They won’t mind even taking a nap in broad day light on a leaf without any fear of birds, spiders, and lizards.

Dogbane beetles are rare in human dwellings unless you live in the meadows or there are dogbane plants in your property.

These beetles are active from June till August. During this period, you’ll find them feeding on the dogbane leaves.

Dogbane Leaf Beetle Bite

Dogbane leaf beetles don’t bite. But hang on, that makes them even more dangerous.

In all honesty, you don’t want to get near to dogbane beetles. These beetles are highly poisonous because of their feeding habits.

The leaves of dogbane and milkweed plants contain a poisonous compound known as cardenolides.

Cardenolides are lethal to animals, birds, and humans because it’s lethal for the heart.

When threatened by a predator, or if the dogbane beetle feels threatened by a human, they can secrete the cardenolides to defend themselves.

Most herbivores and animals who’ve consumed these beetles have died because these cardenolides caused heart failure.

Dogbane beetles are particularly dangerous for dogs. Because if the dogs bite them then these beetles will immediately secrete those lethal compounds which can make your dog terribly sick if not kill it.

But these beetles have a very short lifespan. They don’t survive for more than six to eight weeks.

And during their lifespan, these beetles make the most of it by mating every day.

If there are any dogbane leaf beetles in your property, and you want to get rid of them, the best approach is to remove all the dogbane and milkweed plants from your property.

Getting rid of these plants can be challenging as only uprooting them will not work. You’d need an herbicide to prevent these plants from growing up again.

There’s no specific insecticide spray available for dogbane leaf beetles. However, spraying soapy water, mixed with peppermint essential oil for extra punch, will kill these beetles. Sweat Bees

Sweat Bees

Sweat Bees

Not completely green, yet with shades of green mixed with blue, bronze, and black, sweat bees are attracted to human sweat.

Sweat bees are active from the beginning of the spring till late summer.

These bees are helpful pollinators, and they’ll pollinate all types of flowers. Hence, they’re beneficial bees which you wouldn’t want to get rid of.

According to the United States Agricultural Department, the pollination capability of sweat bees is the one of the best among all types of pollinating bees.

Their complex digestive systems and the ability of the female sweat bees to carry pollen on their backs enable them to process different types of pollens.

There are 1000 species of sweat bees in North and Central America. But Florida has the highest number of sweat bees species with 44 types of sweat bees.

They’re widespread across the continental US and they’re eusocial while living in their colonies. Eusocial bees live in individual cells that they make inside their hives.

Sweat bees are make their nests underground. The queen sweat bee, which is also known as gyne, creates the cells in the nest and populate it with eggs.

These eggs eventual hatch. Larvae come out of these eggs and then they pupate.

From the pupae adult sweat bees pop out who build the nest further helping the queen the populate the nest with more eggs.

These bees are quite a nuisance because they swarm in large numbers. And when you sweat, you’ll attract the sweat bee swarms.

Sweat Bees Sting

Sweat bees are not aggressive and even when they land on your body they don’t sting.

However, they can sting if you press the sweat bees against your skin. So, if a sweat bee lands on your skin, wipe it off instead of crushing it.

The sting of the sweat bees is the least painful amongst all the stinging bees.

If you’re stung by a sweat bee, it wouldn’t be as grave as the sting from a honeybee or an Africanized bee.

Though you might feel a slight poke on your skin while the sweat bee stings you.

There might be a little bit of swelling on the bitten area of your skin. But it’s highly unlikely that you’ll have any reaction because of the sting.

Pain from the sweat bee sting don’t last beyond a few hours. Applying ice pack or an antiseptic on the bitten wound will pacify any pain that you might feel after the sting.


To summarize the 8 tiny green bugs that bite, here’s the list again –

  1. Green leafhoppers
  2. Pale green assassin bugs
  3. Green thrips
  4. Katydids
  5. Ambush bugs
  6. Green Tiger beetles
  7. Dogbane leaf beetles
  8. Sweat bees

Of all these little green bugs, it’s the dogbane leaf beetle which is the most poisonous. They don’t bite, they secrete toxins that are deadly.

However, some tiny green bugs that people think are dangerous and they bite too. Fig beetles and June beetles are two of them. Contrary to popular opinion, both these beetles do not bite humans.

Do you want to know more about tiny bugs that leave a painful bite, but you can’t see them?

Then check out our post on microscopic bugs that bite and tiny black bugs that bite and itch.