White-marked Spider Beetle: Identification, Habitat, Behavior, and Control

The White-marked Spider Beetle, scientifically known as Ptinus Fur, is a small insect found in various regions across the world. These creatures belong to the family Ptinidae, which includes other spider beetles. The name “spider beetle” comes from their spider-like appearance due to their round bodies and long, slender legs.

White-Marked Spider Beetles


White-marked Spider Beetles typically measure between 2 to 4 mm in length. Their bodies are shiny and reddish-brown, with a characteristic white mark on the wing covers, lending them their name. They possess long, thin legs and antennae that often curl, adding to their spider-like appearance.

Life Cycle and Behaviour

The life cycle of the White-marked Spider Beetle consists of four stages: egg, larva, pupa, and adult. The female beetle can lay hundreds of eggs at a time, usually in dark, secluded places. The larvae are C-shaped, white to creamy in color, and develop into adults within several weeks to a few months, depending on environmental conditions.

White-marked Spider Beetles are nocturnal, and they prefer dark, humid environments. They are often found in pantries or storerooms, where they can feed on various foodstuffs, including grains, seeds, dried fruits, spices, and animal products such as wool and feathers.

Extermination Techniques

Controlling White-marked Spider Beetles typically involves a multi-step process that includes inspection, sanitation, exclusion, and treatment.

  1. Inspection: Identify infested areas by looking for signs of their presence, such as damaged goods, droppings, or the beetles themselves.
  2. Sanitation: Dispose of infested foodstuffs and thoroughly clean storage areas. Regularly clean and vacuum these areas to remove any eggs or larvae.
  3. Exclusion: Seal cracks and crevices in your home to prevent beetles from entering. Store food in airtight containers to keep them safe from infestation.
  4. Treatment: Professional pest control services may use insecticides or heat treatments if the infestation persists.


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