Carpet beetles are small insects with rounded, oval bodies. Their legs and head are not always visible as they are often hidden under the body. Carpet beetles can range in size from 2-5mm depending on the species and their colours vary from light yellow, brown to black. Carpet beetles can be found all over Australia and live inside homes and other buildings where food is available. The Australian carpet beetle (Anthrenocerus australis) is 2-3 millimetres long and dark with light markings. Carpet beetle larvae move slowly and are 4-7 millimetres long, depending on the species, they are brown in colour and covered in bristles. As the larvae grow they moult, leaving cast brown skins. Adult carpet beetles feed on nectar or pollen whilst their larvae feed on wool, fur, silk, felt, dried meat, and carcasses.

Pest status and management

Carpet beetle larvae feed on dry materials of animal origin such as:

• wool
• fur
• silk
• felt
• dried meat
• carcasses.

Variegated and black carpet beetles are the most widespread and damaging species, although the others can be locally destructive. Carpet beetle may frequently damage:

• carpets
• rugs
• underfelt
• wall hangings
• clothing
• wool insulation
• insect collections.

If an infested article is transportable, remove and disinfest by heat or cold treatment. Leave it in the sun wrapped in black plastic, or deep-freeze it for two weeks. Adult carpet beetles lay eggs near food sources and larvae feed, often for more than six months, on the surface or inside the material. The result of carpet beetle infestations can be evident through the damage caused to carpets, underlay felt, rugs, clothing, wool, wall hangings, pet bedding, pipe insulation and even the presence of dead insects. Adult beetles emerge during spring and summer and can sometimes be found around windows from where they have tried to fly outside. Prevention is key- Vacuum carpets, rugs, soft furnishings and upholstery frequently and thoroughly. Pay particular attention to low-traffic areas of carpets such as edges and under furniture. Washing and steam-cleaning where appropriate, is effective. When susceptible clothes will be unused for an extended period (for example, woollens over summer) clean them well and store in sealed plastic bags.