Animals

Brown Marmorated Stink Bug: 21 Facts You Won't Believe!

Brown marmorated stink bug facts like they can destroy millions of dollars worth of crops in the blink of an eye are interesting.
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Stink bugs are shield-shaped insects belonging to the Pentomidae tribe. There are around 5000 species of stink bugs in the world. The brown marmorated stink bug (Halyomorpha halys stål) is one of the most well-known stink bugs, quoted by The New Yorker as 'the most damaging, the most irritating, and probably the ugliest' of all stink bugs. It's an invasive species that has taken North America by storm and not really in a positive way.

Even though they are native to East Asia, their first species were collected in Pennsylvania, the USA, in 1998. This species eats over a hundred different kinds of plants, including some that are essential to humans economically. Fruit trees (particularly apple and pear trees), soybeans, and peanuts are among the crops that these insects have severely harmed.

If you liked reading these brown marmorated stink bug facts, you must also read fact files on ambush bugs and green stink bugs.

Brown Marmorated Stink Bug

Fact File

What do they prey on?

Small insects, fruit, vegetables

What do they eat?

Omnivores

Average litter size?

30-100

How much do they weigh?

0.003-0.004 oz (111-123 mg)

How long are they?

0.7 in (17 mm)

How tall are they?

N/A

What do they look like?

Mottled brownish-gray

Skin Type

Shell

What are their main threats?

Insecticides

What is their conservation status?

Not Evaluated

Where you'll find them

Agricultural fields

Locations

USA

Kingdom

Animalia

Class

Insecta

Scientific Name

Halyomorpha halys

Family

Pentomidae

Genus

Halyomorpha

Interesting Facts About The Brown Marmorated Stink Bug

What type of animal is a brown marmorated stink bug?

It is an insect, often considered a pest.

What class of animal does a brown marmorated stink bug belong to?

It belongs to the class of Insecta.

How many brown marmorated stink bugs are there in the world?

The exact number of these invasive species of bugs globally is not known, but there is no shortage of such bugs in the world. They exist in abundance and cause the loss of millions of dollars in crop damage and pest control in the US alone.

Where does a brown marmorated stink bug live?

The brown marmorated stink bug (Halyomorpha halys) is an endemic invasive species first discovered in the United States near Allentown, Pennsylvania, in 2001. Their population is highly concentrated in North America, but they are native to China, Korea, Japan, and other Asian regions.

What is a brown marmorated stink bug's habitat?

The natural habitat of this insect consists of fields containing crops. This pest also loves gardens, orchards, and farms.

Who do brown marmorated stink bugs live with?

They live in swarms amidst crops in fields across the world.

How long does a brown marmorated stink bug live?

A brown marmorated stink bug's life cycle is about six to eight months. However, the nature of their food supplies, the number of predators, the temperature, and other climatic factors all play a role in determining their lifespan. Kudzu bugs are mainly found in the Southeast United States, and an adult brown marmorated stink bug lives for about six to twelve weeks.

How do they reproduce?

The female stink bugs lay eggs in clusters of twenty to thirty underside of leaves after their mating, shortly after their hibernation. A single female of this species can lay up to three hundred eggs. Eggs are light green or light blue, 0.04 in (1 mm) in diameter, and laid in clutches of about 28 eggs. Eggs are normally found on the underside of the leaves of the host plants. The eyes emerge as two red spots as the embryo grows and becomes apparent through the egg, and then slowly, the nymph comes out. These nymphs, however, do not have wings like adults and are tiny versions of the adults.

What is their conservation status?

The conservation status of these insects is Not Evaluated by the IUCN. Brown marmorated stink bug damage results in the loss of millions of US dollars due to their feeding on agricultural crops. This pest causes a lot of loss.

Brown Marmorated Stink Bug Fun Facts

What do brown marmorated stink bugs look like?

Brown marmorated stink bug feeding on a host plant in a swarm is a very common sight.

These bugs have the typical 'shield' shaped body of all stink bugs. Adults are about 0.7 in (17 mm) long and have a mottled brownish grey coloration. A white band runs around the fourth antennal segment, and multiple abdominal segments protrude from under the wings, alternately banded in black and white. The underneath is white, with some wrinkling. The sucking mouth sections of these bugs are filled with supportive styles that are large enough to pierce plant structures but not strong enough to pierce an animal's skin (including humans). It is also unlikely for a stink bug to bite or hurt a human rather than to exude any of its foul odors on them.

How cute are they?

They are not at all cute. They have a very creepy appearance. This pest does not look cute from any angle whatsoever!

How do they communicate?

Brown marmorated stink bugs interact with one another in two ways: vibrational 'songs' and pheromone-like chemicals emitted into the air. The stink bug's abdomens' moving causes the vibrations, and they are transmitted to the plant leaves or other substrates on which it is seated. Stink bugs like certain plants (like beans, for example) because they easily move and relay their vibrational 'songs'. These vibrational signals are particularly significant in the mating activity of stink bugs. Particularly in the early spring and fall, stink bugs emit aggregational pheromones.

How big is a brown marmorated stink bug?

It is a tiny insect that is barely 0.7 in (17 mm) long. It is the average size for an insect but a bit larger than caterpillars. The adults are larger than other native stink bug species, measuring 0.5-0.7 in (12-17 mm) in length. The base color is a combination of orange, dark red, and black on the dorsal surface, with a beige or creams ventral surface punctuated by shiny green lines on the ventral thorax.

How fast can brown marmorated stink bugs move?

When the need arises, stink bugs have been known to fly between one and three miles a day. Their strong wings fold upon their backs on the deck, giving them a shield-like look. However, when the stink bugs are flying, these wings assist them in taking advantage of wind currents and covering larger distances. Their exact speed is not known.

How much does a brown marmorated stink bug weigh?

The weight of this pest is 0.003-0.004 oz (111-123 mg).

What are the male and female names of the species?

There is no specific name for male and female stink bugs. They are simply referred to as male and female stink bugs.

What would you call a baby brown marmorated stink bug?

The baby is called a nymph. The instar in the nymphal stages or the brown marmorated stink bug nymph ranges in size from 0.1-0.5 in (2.4-12 mm) in length. Unlike the adults who fit in well with bark, the nymphs are vividly colored red and black. The first instars, which resemble ticks, are not very aggressive and stay close to the hatched egg mass. Nymphs have dark reddish eyes and a yellowish-red belly with black stripes that distinguishes them. The nymphs' legs and antennae are black with white banding.

What do they eat?

This pest is a serious farm insect that has been wreaking havoc on crops in the Eastern US. All kinds of fruits like apples, apricots, Asian pears, cherries, corn, grapes, lima beans, peaches, peppers, tomatoes, and soybeans are among the plants they eat. All sorts of fruit trees serve as host plants for them. They are usually seen feeding on a fruit, vegetable, or agricultural crop.

Are they harmful?

Owing to the use of buildings as overwintering grounds, this insect has become a dangerous threat to homeowners. Because of this insect's havoc and the damage it wreaks, a body for scholarly, community, and private-sector research has been created for its regulation. If you want to get rid of these insects, use neem oil or a garlic spray to keep them at bay. Eliminate the moist spots and make sure that you do not leave food around in the house.

Would they make a good pet?

They are pests and cause a lot of damage to agricultural and fruit crops and lead to a loss of millions of dollars every year and hence it is extremely inadvisable to have them as pets.

Did you know...

In 2010, these stink bugs destroyed apple crops in the Mid-Atlantic United States worth $37 million, and some stone fruit farmers lost more than 90% of their crops. These bugs release a foul odor when threatened or even when killed. So, it would help if you didn't kill them as this odor is really awful.

They come indoors while searching for a shelter to survive the winters, and when they find a suitable place, they attract other stink bugs.

Costs and benefits of brown marmorated stink bugs

Considering the amount of damage and problems that these stink bugs are capable of causing, they can lead to a loss of millions, especially after the incident in the Mid-Atlantic States in 2010. This particular bug is a dangerous pest, and hence it does not have any benefits and can cost people a lot if its breed happens to infect crops. Predators who eat stink bugs don't seem to be abundant in their invasive ranges. One of the reasons this species' population has exploded through these areas is the lack of biological control agents. In their natural habitats, stink bugs are eaten by spiders, ants, lacewings, a variety of parasitic flies, and common wasps.

Where did the brown marmorated stink bug come from?

The brown marmorated stink bug belongs to the Pentatomidae genus of insects and is native to China, Japan, Korea, and other Asian countries, and this is where it came from. In Allentown, Pennsylvania, it was discovered in September 1998, when it is said to have been inadvertently introduced.

Here at Kidadl, we have carefully created lots of interesting family-friendly animal facts for everyone to discover! For more relatable content, check out these broad-necked root borer facts and carpenter bee facts for kids.

You can even occupy yourself at home by coloring in one of our free printable brown marmorated stink bug coloring pages.

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