What Are These Tiny Bugs in My House Near the Window?

Charlie Golsley in home living

2/14/25

[updated: 2/18/25]

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As the seasons change, you might start noticing tiny black bugs gathering around your windows. These pests are often seeking warmth, moisture, or an easy way inside. While some are harmless, others can become a nuisance or even cause damage to your home. If you’re wondering what these little invaders are, here are five common black bugs you might find near your windows and what you can do about them.

Carpet Beetles

Carpet beetles are small, oval-shaped black bugs that can sometimes appear near windows as they search for food or a way indoors. Their larvae feed on natural fibers like wool, silk, and leather, as well as crumbs and pet hair. If left unchecked, they can cause damage to carpets, clothing, and upholstered furniture.

To prevent carpet beetles from invading, vacuum frequently and keep windows and doors sealed properly. If you spot them indoors, inspect your closets, rugs, and furniture for signs of larvae and remove any infested materials.

Fungus Gnats

Fungus gnats are tiny, mosquito-like insects that are often drawn to window areas because of their attraction to light. These pests thrive in moist environments, which is why they’re commonly found near houseplants or damp areas. They lay their eggs in the soil, and their larvae feed on decaying organic matter, which can lead to overwatered plants suffering from root damage.

To get rid of fungus gnats, let your houseplant soil dry out between waterings and use sticky traps to catch the adults. You can also place a small dish of apple cider vinegar mixed with a few drops of dish soap near the windows to lure and trap them.

Springtails

Springtails are tiny, dark-colored insects that often appear near windowsills, especially after heavy rain or in humid conditions. They thrive in damp environments and feed on mold, mildew, and decaying organic matter. While they don’t bite or cause damage, their presence can indicate excessive moisture in your home.

To get rid of springtails, address any moisture issues by using a dehumidifier and sealing any leaks. Keeping windows dry and ensuring proper ventilation can help keep these bugs from gathering in your home.

Clover Mites

Clover mites are extremely tiny, reddish-black insects that often appear in large numbers near windows, particularly in early spring and fall. Unlike other pests, they don’t bite or cause damage to furniture, but they can leave behind red stains if crushed. They are typically found crawling on window sills, walls, and even ceilings as they try to move indoors.

To prevent clover mites from entering, seal cracks around windows and doors and trim back vegetation near your home’s foundation. If you already have them inside, gently vacuum them up instead of squishing them to avoid stains.

Grain Weevils

Grain weevils are small, dark brown to black bugs that sometimes show up near windows when they infest pantry items like rice, flour, or pasta. They tend to move toward light sources, which is why they may be found on windowsills as they try to escape your kitchen.

If you spot grain weevils, inspect your dry goods and discard any infested items. Store pantry staples in airtight containers to prevent future infestations, and clean out cabinets regularly to remove any lingering food particles.

If you’re noticing tiny black bugs near your windows, they could be one of these common pests. Identifying them early can help prevent an infestation from spreading inside your home. Whether they’re drawn to light, moisture, or food, addressing the underlying cause is key to keeping them out for good.