The brown house moth (Hofmannophila pseudospretella) is a common indoor moth, found in homes across the U.S. Originally from Asia, this pest has adapted well to living indoors, especially in warm, dry environments. While it doesn’t bite or spread illness, it can cause noticeable damage to clothing, carpets, stored food, and other household materials, making it a pest worth taking seriously.
These moths tend to be more active at night and are drawn to light sources, which is why you might spot them fluttering near lamps or windows in the evening.
Brown house moth larvae tend to feed on a wide range of natural materials and are often hidden away in less noticeable places.
Adult brown house moths are small, about 5/16"–9/16" long. They have dark brown forewings, each with three or four black spots, giving them a speckled look that helps them stay hidden in fabrics and soft furnishings. At rest, their wings fold neatly over their body in a triangular shape. Their pupa are 9/16" to 3/4" long and can be found in a silk cocoon.
Brown house moths are usually identified by their slow, fluttery flight and their tendency to appear in quiet, undisturbed areas of the home. Look for them in closets, basements, or near food storage, especially if there’s low light and little activity.
Signs of an infestation often include holes in clothing, threadbare patches on carpets, or small bits of webbing and debris in food packages. The larvae — small, cream-colored grubs, up to 3/4" long, dirty white with a brown head—are rarely seen out in the open, but if you do spot them, they may be hiding under furniture, in the back of drawers, or inside stored food.
These moths prefer places where they won’t be disturbed. This means they often lay their eggs in dark, quiet areas that offer plenty of food for the larvae once they hatch. Common spots include closets filled with wool clothing, drawers lined with natural fabrics, storage boxes, and even the corners of kitchen cupboards.
The larvae can feed on various materials, including wool, feathers, leather, flour, cereal, and pet food.
The biggest concern with brown house moths is the damage they cause to household items. The larvae feed on natural fibers like wool, silk, cotton, and leather and infest stored foods like rice, flour, and cereal. Over time, their presence can lead to ruined clothing, contaminated food, and damage to furniture or soft furnishings.
These moths don’t pose any direct health risks — they don’t bite, sting, or carry disease, but the damage they cause can be expensive and frustrating. Infestations can be tricky to deal with using home remedies alone.
These pests can be challenging to eliminate, especially if the brown house moth infestation has been growing unnoticed for a while. These moths tend to lay their eggs in hidden areas, and the larvae can spread to multiple parts of the home.
Even with thorough cleaning, eggs or larvae can be left behind, causing the problem to return. Brown house moth larvae may wander considerable distances prior to pupation, and are generally regarded as scavengers.
Hiring a professional pest control service is the most effective way to deal with a brown house moth problem. Our moth control technicians are trained to find the source of the infestation in your home and apply treatments that help protect your space.
If you’ve spotted signs of brown house moths or are dealing with other pest problems in your home or business, our technicians are ready to help. We’ll inspect your space, target the problem areas, and work with you to help reduce the chance of them returning. Our technicians know where to look and will use brown house moth treatments to help target the root cause of the infestation. Get assistance via our commercial or residential pest solutions.
Brown house moths aren’t a threat to health, but their larvae can damage clothing, carpets, upholstery, and stored food items.
Natural materials like wool, silk, feathers, leather, and uncovered dry goods such as cereal or flour are common attractants. Dark, quiet areas make ideal egg-laying spots.
Common hiding places include the backs of closets, drawers, under furniture, in storage boxes, and inside food cupboards—anywhere warm, dark, and undisturbed.
Signs include small moths flying indoors, holes in fabrics, and silk webbing or droppings in food storage areas. Larvae may also be seen in hidden corners or behind furniture.
To help prevent a moth infestation, use sealed containers for storing food and clothing, clean regularly, and reduce clutter in storage areas. Checking quiet, hidden spaces often can help stop an infestation before it grows.