Do Ladybugs Bite?

Do Ladybugs Bite?

Ladybugs are colorful and cute insects that are often considered a symbol of good luck. But do they bite humans? The answer is yes, but not all of them, and not very often. In this article, we will explore the following questions such as Which ladybugs bite, Why do ladybugs bite, and what to do about ladybug bites? We will also provide some tips on how to prevent ladybug bites and how to deal with them if they happen.

Which Ladybugs Bite?

There are more than 5,000 species of ladybugs in the world, but only 24 are known in the United States. Some of them were introduced by scientists to control pests like aphids that damage crops. The most common ladybug in the United States is the Asian harlequin ladybug (Harmonia), which is also the most likely to bite humans. It has a large white spot behind its head and can have zero to 21 spots on its wings.

Other species of ladybugs that may bite humans include:

  • Asian lady beetle (orange ladybugs)
  • Ladybug beetles
  • Ladybird beetles or ladybirds

These ladybugs are usually bright red or orange with orange or black spots.

Why Do Ladybugs Bite?

Ladybugs have chewing mouthparts called mandibles that they use to feed on soft-bodied insects. They cannot break through human skin, but they can scratch or pinch it, causing a mild nip or welt. Ladybugs usually bite humans when they are hungry or thirsty and mistake them for food or a source of moisture. They may also bite humans to get salt from their sweat. Ladybugs are more likely to bite humans during times of scarcity, such as when their prey population is low or when the weather is hot and dry. They may also bite humans when they invade their homes in fall and winter to seek warmth and shelter.

What to Do About Ladybug Bites?

Ladybug bites are not dangerous or harmful to most people. They may cause some pain, itching, swelling, or redness, but these symptoms usually go away on their own. However, some people may be allergic to ladybugs and have more severe reactions, such as breathing difficulties, swelling of the lips and airways, or anaphylaxis. If a ladybug bites them, they should seek medical attention immediately. To prevent ladybug bites, it is best to avoid contact with them and keep them out of your home. You can do this by sealing any cracks or gaps in your doors and windows, using screens or nets, vacuuming them up gently, or using natural repellents like citrus or bay leaves.


Ladybugs are beneficial insects that help control pests and pollinate plants. They are not aggressive or malicious, but they may bite humans under certain circumstances. If you encounter a ladybug, be respectful and gentle, and try not to harm it.

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