Asian Lady Beetle


Actual Size: 6 to 10 mm

Characteristics: Mustard-yellow to a dark reddish-orange. Spots on the wing covers, but in some species, the spots are absent.

Legs: 6

Antennae: Yes

Wings: Yes

Habitat: Can be found in crops, attics, wall voids, and on the side of homes and buildings.


  • Slightly larger than typical ladybugs.
  • Dark “M” shaped marking on the pronotum, behind the head.
  • As a defense mechanism, they will release a yellow, foul-smelling substance from joints.

Asian Lady Beetles in North Carolina

The multicolored Asian lady beetle was introduced into the United States from Asia to control aphids, scale, and other crop pests from 1978 to 1981. It is now widely distributed across the nation. Asian lady beetles may enter homes in large numbers and have become consistent overwintering pests in buildings and homes.

Because there are many different types of beetles in North Carolina, they can be difficult to distinguish, however our common beetles species can help with this.

Asian Lady Beetle Habitat

This species is a voracious predator of crop pests and produces several generations per year. Their tendency to aggregate and ability to enter structures often causes this insect to become a significant structural pest. Hundreds and even thousands of these beetles have been found in and on homes. Asian lady beetles can be found in attics, wall voids, on siding, inside closets, and may be attracted to light.

Asian Lady Beetle Behaviors, Threats, or Dangers

One of the most notable behaviors of the Asian Lady Beetle is its swarming tendency, particularly during the autumn months. As the weather cools, these beetles gather in large numbers, often seeking shelter inside homes and buildings. While they are not inherently dangerous, their presence in large numbers can be a nuisance. In some cases, they may exude a yellowish fluid that can stain surfaces and emit a distinct odor when disturbed or crushed.

Are Asian Lady Beetles Harmful?

Generally, Asian Lady Beetles are not harmful to humans or pets. They play a beneficial role in the environment by feeding on plant pests such as aphids and scale insects. However, their tendency to invade homes in large numbers can be problematic, contact our licensed beetle exterminators, we can offer a safe effective removal service for you.

Do Asian Lady Beetles Bite?

Asian lady beetles may bite, their bite does not seriously injure humans or spread diseases. If handled or crushed, they will emit a foul odor and leave a stain.

Are Asian Ladybugs Invasive?

The term “invasive” is often used to describe non-native species that adversely affect the habitats they invade. Asian Ladybugs, introduced to various regions including North America for biological pest control, have become invasive. Their rapid population growth and competitive nature can negatively impact native species and ecosystems.

How to Get Rid of Asian Lady Beetles?

In fall, Asian lady beetles seek out crevices and protected areas around homes to spend the winter, congregating in attics, wall cavities, cracks around door frames, and within soffits and wall voids.
If a large number of beetles gain access inside of homes, they can stain drapery and clothing. Asian lady beetles cannot survive sub-freezing temperatures, although they can survive within homes and buildings that provide adequate warmth and humidity. If you are dealing with an infestation, always contact a licensed beetle exterminator.

Frequently Asked Questions


What is the Difference Between a ladybug and an Asian Ladybug?

Distinguishing between a common ladybug and an Asian ladybug can be challenging. The most notable difference is the presence of a distinct “M” or “W” shaped mark located on the head of the Asian Lady Beetle. Additionally, Asian Lady Beetles tend to have a wider range of colors and spot patterns compared to the uniformly red and black-spotted common ladybugs.

What are Asian Ladybugs Good For?

Asian ladybugs are beneficial in gardens and agricultural settings as they feed on aphids and other soft-bodied insects, helping to control these pest populations.

What Do Asian Lady Beetles Eat?

Asian lady beetles, like other ladybugs, primarily feed on aphids and other small insects. They are beneficial predators in gardens and agricultural settings, helping control pest populations. Additionally, they may consume nectar, honeydew, and other sugary substances for energy.

What Does An Asian Beetle Look Like?

Asian lady beetles are small, round beetles with convex bodies, typically measuring 1/4 to 3/8 inches in length. They come in various colors, ranging from orange to red, with variable numbers of spots. They often have a distinctive “M”-shaped mark on their heads.