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Larder Beetle

Larder Beetle

Dermestes lardarius

A species of Dermestes, Also known as Bacon beetle

You may find the common larder Beetle (Dermestes lardarius) rummaging in your kitchen cabinet for dried foods, grains, or other dead bugs. These beetles will bore into any nearby source they can to pupate, and some have even dug into things such as books. Larder Beetle larvae are actually stronger than adults because of the bristles on their backs.

General Info About Larder Beetle
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Attributes of Larder Beetle
Colors
Brown
Black
Habitat
stored foodstuff
Adult Food Sources
Plant materials, nectar, carrion, dead insects, dry pet food
Venomous
Not reported
Non-poisonous
The Larder Beetle is non-toxic and generally doesn't pose a risk to human health. No need for excessive worry.
Borer
The Larder Beetle can bore into the wood and may damage its structure, or even harm the health of trees. Stay alert if you frequently observe it in your house.
Pollinator
Not reported
Pest-Eating Predatory
Not reported
Phytophagous
The Larder Beetle feeds on plants, usually without causing significant harm. However, it's important to take the situation seriously if their numbers begin to increase significantly.
Predatory
Not reported
Biting animal or pet
Not reported
Mouthparts Type
Chewing mouthparts
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Life Cycle of Larder Beetle
Egg After mating, the female larder Beetle lays eggs, which are small, oval, and typically white or cream-colored. These eggs are often laid in clusters and are usually deposited in a nutrient-rich environment.
Larva Upon hatching, the larva of larder Beetle appears worm-like with a segmented body, usually bearing a strong chewing mouthpart for feeding voraciously, often on animal materials or decaying matter.
Pupal The larva of larder Beetle transforms into a pupa, which is a resting stage. During this time, the larder Beetle is encased in a cocoon-like structure, undergoing significant transformation in shape and internal structures.
Adult The adult larder Beetle emerges with hardened exoskeleton and wing cases, known as elytra. It possesses developed wings, compound eyes, and antennae, displaying sexual dimorphism and seeking mates to reproduce.
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Adult Size of Larder Beetle
5 - 8 mm
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Predators of Larder Beetle Larvae
Birds, rodents, lizards, predaceous insects
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Predators of Adult Larder Beetle
Birds, rodents, spiders, lizards, predaceous insects
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Interesting Facts About Larder Beetle
Larder Beetle larvae can consume an entire carcass to the bone, a process utilized in museums to clean skeletons.
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Scientific Classification of Larder Beetle
Tips for Finding Larder Beetle
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How Can You Attract Larder Beetle
To trap larder Beetle, use decomposing meat or animal products as bait.
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Habitat Preferences of Larder Beetle Through Different Life Stages
Eggs of larder Beetle are typically laid in dark, hidden locations near a food source. Larvae prefer to reside in abundant organic material, such as carcasses, dried fish, or cheese, often in hard-to-reach places like cracks and crevices. Pupation occurs in a sheltered site, frequently within a cocoon made from debris. When searching, inspecting dry pet food, woolen fabrics, and museum specimens is likely to reveal larvae or adults. Adults are less hidden than larvae, often found near windows or light sources after they emerge, searching for mates or dispersing to new sites to lay eggs.
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When is the Best Time to Observe Larder Beetle
The best time to find larder Beetle is during their active periods, which are typically in the warmer months from late spring to early fall.
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What is the Best Weather to Observe Larder Beetle
Look for larder Beetle on warm, dry days as they are less active during cold or very wet weather.
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How and Where Can You Find Larder Beetle at Different Life Stages
Larva Larvae of larder Beetle can be found in dark, secluded areas where there is an abundance of food material, such as dried meats or animal products. Inspect such areas carefully using a flashlight and gloves for safety.
Pupal Pupae of larder Beetle may be located in sheltered positions near their food sources. Look for them in crevices, under furniture, or in stored products where larvae were once thriving.
Adult Adult larder Beetle are often found near light sources and windows. They can fly and might be attracted to sticky traps baited with appropriate food materials or pheromones.
Are Larder Beetle harmful?
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The larder Beetle, or larder beetle, infests stored food and can also damage personal and public properties.

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Are Larder Beetle harmful to humans?

It causes the most harm in the larval stage of growth.
Larder Beetle do not bite or sting and usually do not cause harm to humans.
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The main damage larder Beetle causes include:
Allergies. The thin long hair of larvae can cause skin irritation or rash.
Boring through textiles. Larder Beetle can destroy a variety of textiles, including carpets, curtains, clothing, etc.
Eating food. Larder Beetle eats dried meat, dried fish, pet food, and high protein grains.
Destroying animal specimens. Larder Beetle can eat animal feathers, furs, or even the dead bodies of other bugs. Therefore, they are terrible pests in museums.
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Where do Larder Beetle come from?

In spring and early summer, adults fly in through open doors and windows to seek food sources and lay eggs.
In autumn, larder Beetle hides indoors to keep warm.
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What is the most effective prevention against Larder Beetle?

Close passageways. Larder Beetle enter buildings through narrow gaps. Get into the habit of closing doors and windows, and repair flaws to the surface of buildings.
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Cut off their food source. Seal foods, including pet food. Use cleaners to wipe the stove and smoke exhaust ventilator, and clean accumulated oil. Animal fats are attractive to larder Beetle. Because larder Beetle can eat the dead bodies of other animals, be sure to remove dead mice and bugs to reduce their food source.
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Harmful Effects of Larder Beetle
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Stored Produce Pest

The insect larder Beetle can inflict mild to severe damage to stored food products. In both larval and adult stages, it feeds on and contaminates stored goods like dried meats and fish. While the larvae bore into the food, causing physical harm and potential food spoilage, the adults also contribute to the deterioration. This pest's behavior leads to a loss of food quality and commercial value, creating significant problems for both homeowners and businesses in the food industry. Stringent pest control measures are often necessitated to manage their populations and prevent widespread infestation.

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Hurt Plant

Larder Beetle can cause a range of damage to stored plant products. Both adults and larvae feed on dried organic matter, which may include plant seeds. This feeding can lead to a mild to severe impact on the viability of stored seeds and other plant resources.

More Effects of Larder Beetle

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