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Pill Bugs

Did you know? The pill bug is the only crustacean that can spend its entire life on land.

Pill Bugs

Pill Bugs

The pill bug is the only crustacean that can spend its entire life on land. Their shells look like armor and they are known for their ability to roll into a ball. Sometimes children call them rollie-pollies. Most pill bugs live for up to two years. They are most active at night.

  • Size: 3/4"
  • Shape: Oval
  • Color: Dark brown to black
  • Wings: No
  • Antenna: Yes
  • Common Name: Pill bug
  • Kingdom: Animalia
  • Phylum: Arthropoda
  • Class: Malacostraca
  • Order: Isopoda
  • Family: Armadillidiidae
  • Species: Armadillilium vulgare


Pill bugs mostly eat rotting vegetation like vegetables.


Pill bugs live in wet locations. They are found under damp objects or in organic garbage. If pill bugs enter a building, they will often dry out and die.


Pill bugs do not spread diseases or contaminate food.


  • Keep your homes and the areas around your home clean and dry.
  • Eliminate food sources such as vegetable or plant debris.

To learn how to get rid of pill bugs and prevent infestations, visit the official NPMA website.

More fun with pests