If you've spotted tiny, round, reddish-brown bugs with long legs crawling on a shelf in your Boonton kitchen, you may have spider beetles. At a glance, they look like little spiders or even ticks. They're actually beetles, and they belong to the group of insects that feed on stored food. They're harmless to people, but they can spoil food and keep coming back if you don't find the source. Below, we'll cover what spider beetles are, where they come from and the trick to getting rid of them. If you're finding bugs in more than one food package, our pantry beetle control service can track down where they're breeding.
What Spider Beetles Are
Spider beetles are small beetles, usually just a few millimeters long. Several species turn up in homes, and they share a similar look:
- Shape. A rounded, humped body that can look almost like a tiny ball or bead.
- Legs. Long, thin legs that make them look like spiders.
- Color. Shiny reddish-brown to dark brown, sometimes with fine hairs or light markings.
- Antennae. Long and thread-like.
Count the legs if you can. Spider beetles have six legs, like all insects. Spiders and ticks have eight. That simple check clears up most of the confusion.
What Spider Beetles Eat
Spider beetles are scavengers with a very broad diet. Their larvae, which are small, curled, cream-colored grubs, do most of the feeding. They'll eat:
- Dry foods. Flour, grains, cereals, crackers, dried fruit, nuts, seeds, spices and dried pet food.
- Birdseed and grass seed. Stored bags in garages, sheds and basements.
- Nest debris. Old rodent nests, bird nests and droppings in attics or wall voids.
- Other organic debris. Dead insects, fabric fibers and food crumbs in hidden corners.
That last point is the key to understanding them. Spider beetles don't only live in food packages. They can also breed in places you'd never think to look.
Where They Come From
Spider beetles usually get into a home in one of two ways. Sometimes they arrive in a package of food, birdseed or pet food that was already infested at the store or warehouse. Other times, they come from inside the house, from an old bird or rodent nest in the attic, a wall void or a chimney. In that case, you'll often find them wandering across walls, floors or windowsills rather than inside a food package.
Some species are well suited to cooler temperatures, so it's not unusual to notice them during colder months when other pantry insects slow down.
Are Spider Beetles Harmful?
Spider beetles don't bite or sting, and they don't damage your home's structure. Their harm is to food. Infested products get contaminated with larvae, shed skins and droppings, and should be thrown away. If you're finding them around old nest sites, that's also a sign that birds or rodents have used your home at some point, which is worth checking on its own.
They're also easy to mistake for other small household pests. People sometimes worry they've found ticks or bed bugs when it's really a spider beetle. A clear photo, or a beetle saved in a sealed bag, makes identification quick and spares you a lot of unnecessary worry.
The Trick To Getting Rid Of Them
The trick is simple: find and remove the source. Killing the beetles you can see won't help if the larvae are still feeding in a package or a nest. Here's how to do it:
- Empty the pantry. Take everything off the shelves and check every dry food, including spices, pet food and birdseed.
- Look closely. Watch for live beetles, grubs, webbing, clumped food or small holes in packaging.
- Toss infested items. Seal them in a bag and take them outside to the trash.
- Clean thoroughly. Vacuum shelves, corners and cracks, then wipe them down.
- Store food in airtight containers. Glass, metal or heavy plastic with tight lids keeps beetles out.
- Check beyond the kitchen. If beetles keep showing up away from food, look for old nests in attics, walls and chimneys.
For help telling spider beetles apart from other pantry insects, see our guide to identifying pantry bugs.
When To Call A Professional
If you've cleaned out the pantry and spider beetles keep showing up, the source is probably hidden. That often means a nest in a wall, attic or crawl space, or food debris in a spot that's hard to reach. Our NJ DEP-licensed technicians inspect your home to find where the beetles are breeding, apply targeted treatments using EPA-registered, eco-safe products and seal entry points that let birds or rodents in. Every treatment is backed by our EcoGuard Guarantee, and we offer free inspections with same-day and next-day service.
Spider beetles look strange, but they're a manageable problem once you know where they're coming from. Track down the source, store food well and your Boonton pantry will stay beetle-free.