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Brown ant

Brown ant

Lasius brunneus

A species of Citronella ants

Lasius brunneus is a species of ant in the genus Lasius. The species is widely distributed in Europe, from Sweden in the north to Anatolia in the south. In England this species is almost always found nesting in oak trees or rotting wood mainly foraging in trees but has also been found under stones and foraging on the ground. It is thought to be underrecorded but is fairly common especially in the South East. Workers are easy to identify as they are bicoloured, but they can be confused with Lasius emarginatus. Nuptial flights have been recorded as early as May on warm days from early morning to early afternoon. Queens are smaller than other Lasius species, mainly a uniform dark brown colour with a flattish, slim appearance.

Bite Humans
Bite Humans
General Info About Brown ant
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Attributes of Brown ant
Colors
Brown
Black
Habitat
Oak tree; rotting wood; stump; hedgerow
Adult Food Sources
Honeydew collected from aphids and other hemipterans, small arthropods, organic detritus, nectar, fungi
Venomous
Not reported
Non-poisonous
Not reported
Borer
Not reported
Pollinator
Not reported
Pest-Eating Predatory
Not reported
Phytophagous
Not reported
Predatory
Not reported
Biting animal or pet
Not reported
Mouthparts Type
Chewing mouthparts
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Species Status of Brown ant
Widespread
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Distribution Area of Brown ant
Europe, Sweden, Anatolia
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Life Cycle of Brown ant
Egg The fertilized egg is small, oval, and translucent. It is vulnerable and dependent on the adult brown ant for protection and care. The egg undergoes cell division and growth inside a protected environment.
Larva Upon emerging, the larva is legless and maggot-like in form, focusing primarily on feeding and growth. Its pale color and soft body differentiate it from later stages. It molts several times, increasing in size and gradually developing adult features.
Pupal The pupa represents a transitional phase where the brown ant remains stationary, encased in a cocoon-like structure. It is here that the most significant transformation occurs, with internal reorganization preparing for adulthood. The pupa gradually takes on the adult coloration.
Adult Emerging from the pupa, the adult brown ant’s development is marked by the presence of wings and functional reproductive organs. The body is fully formed and hardened, and the adult is mobile, focusing on reproduction and establishing new colonies.
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Interesting Facts About Brown ant
The brown ant creates intricate underground colonies, resembling miniature cities with intricate pathways and specialized chambers for various activities.
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Scientific Classification of Brown ant
Class
Bugs
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Order
Bees
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Family
Ants
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Tips for Finding Brown ant
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Youth Habitat of Brown ant
Forests and Woodlands, Urban and Suburban Areas
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Adult Habitat of Brown ant
Forests and Woodlands, Urban and Suburban Areas
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When is the Best Time to Observe Brown ant
The best time to search for brown ant is during the day, especially mid-morning to early afternoon when they are most active.
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What is the Best Weather to Observe Brown ant
Warm and dry conditions are best, as brown ant are less active in cold or rainy weather.
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How and Where Can You Find Brown ant at Different Life Stages
Adult Brown ant queens can be found during nuptial flight times, which usually occur on warm, humid days after a period of rain. Spotting them is possible in open areas where they land to mate.
Brown ant workers are typically found foraging for food. To find them, follow a trail of workers back to the nest or place bait such as sweet liquids in areas where brown ant are sighted.
Larva Brown ant larvae are located inside the nest. To safely observe them, one could carefully excavate a small portion of the nest or observe temporarily displaced larvae during research and conservation efforts.
Pupal Brown ant pupae are also within the nest, often in specialized chambers. Viewing them involves a similar approach to the larva stage, but caution is advised to avoid distressing the colony.
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Are Brown ant harmful to humans?

Different kinds of ants cause different troubles to humans. To be sure, compared with other dangerous creatures, common ants are very harmful to humans, and most of them just gather in the courtyard or room to disturb human life.
But there are some dangerous groups. They have strong jaws and sting needles and can bite or sting when under stress. Usually, ants only cause physical damage and the pain caused by formic acid. These discomforts do not even need to be dealt with, and can be recovered quickly. But there are still very few ant stings that can cause allergies and even death. Other ants can pollute the environment, destroy buildings, affect harvests and even spread diseases.
Harmful Effects of Brown ant
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Bite Humans
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Bite Humans

Brown ant is not typically known to bite humans. These ants may exhibit defensive biting only when provoked or threatened, but such behavior is not part of their general interaction with humans. The bites usually have minimal consequences, akin to a mild pinch, rather than severe effects.

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Nuisance Pests

Brown ant may range from mild to severe nuisance pests. Their foraging and nesting habits within human dwellings cause distress due to contamination of foodstuffs and structural damage, leading to significant inconvenience.

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