
Pill Bugs
Latin Name: Armadillidiidae
What Are Pill Bugs?
Pill bugs are not actually insects—they're crustaceans, more closely related to shrimp and crabs! They're unique among land-dwelling crustaceans because they can roll into a tight ball when threatened, giving them their nickname "roly-poly."
What Do They Look Like?
- Oval-shaped, segmented bodies
- About ¼ to ½ inch long
- Dark gray or brown color
- Seven pairs of legs and two tiny antennae
Their armored appearance and ability to roll up make them easy to recognize.
Where Do They Live?
Pill bugs thrive in damp, dark environments. They're often found:
- Under rocks, logs, or mulch
- In flowerbeds
- Along foundations
- Inside basements or crawl spaces, especially in areas with moisture problems
They rely on moist environments because their bodies can dry out quickly.
What Do Pill Bugs Eat?
Pill bugs are detritivores, meaning they feed on decaying organic matter. They play an essential role in breaking down dead plants and contributing to soil health. However, they may occasionally nibble on young plants or vegetables, making them a minor garden pest.
Are Pill Bugs Harmful?
Good news: pill bugs are harmless to humans and pets. They don't bite, sting, or spread diseases. However, they can become a nuisance if they invade your home in large numbers, typically drawn in by excessive moisture.
Why Are Pill Bugs in My Home?
Pill bugs wander inside when outdoor conditions aren't ideal, especially during heavy rain or drought. They're usually looking for damp, cool places, which is why basements, bathrooms, and crawl spaces are their favorite indoor spots.