Spider Beetles

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Identification

  • Colour Reddish-brown or black to pale yellow or cream
  • Size From 2 mm to 5 mm long
  • Description Oval or cylindrical, with globular abdomens and hidden heads. They have six legs and a pair of long antennae.
  • Notes Resemble spiders upon first glance.

General Facts

Why do I have spider beetles?

Spider beetles feed on a massive range of products, including almonds, animal skin, beans, books, cereals, chocolate powders, corn meal, dates, dead insects, and dried fruits.

They also seek out mushrooms, dried soups, excrement, feathers, figs, fish meal, flour, ginger, hair, leather, corn, nutmeg, older woods, paprika, rye and rye bread, seeds, silk, textile fabrics, wheat, and wool.

Because of this wide range of potential food sources, spider beetles often infiltrate warehouses, mills, grain storage facilities, museums, and attics with rodent or bird nests. They tend to infest mouldy products that are old and high in moisture.

How worried should I be about spider beetles?

Spider beetles contaminate human food supplies and typically unclean, which can make food inedible in homes, and have serious economic consequences for businesses. Since they also eat inorganic material, they can destroy priceless artifacts in museums and storage.

But spider beetles are very small, generally reclusive, and active primarily at night, so humans are often unaware of their presence. They can also remain active at freezing temperatures, and produce two generations of offspring a year.

You can place sticky traps to catch these pests, but the only way to be sure you don't have a large infestation of spider beetles is with the help of professional pest control services.

How can I prevent spider beetles invading?

Discard contaminated food products, Eliminate access to other food sources, Use airtight containers to store food, Vacuum food storage areas regularly, Remove rodent and bird nests

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