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Brown longhorn beetle

Brown longhorn beetle

Obrium brunneum

A species of Obrium

Native to deciduous woodlands, brown longhorn beetle is a wood-boring beetle known for its insatiable larval appetite for hardwoods, which inadvertently aids in the decomposition and nutrient recycling of dead trees. As it matures, its coloration shifts from a juvenile paleness to a rich brown, with adults often found nectar-feeding on flowers, playing a role in pollination.

General Info About Brown longhorn beetle
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Attributes of Brown longhorn beetle
Colors
Brown
Black
Red
Habitat
Coniferous forest; flower; deadwood
Adult Food Sources
Plant sap, nectar, pollen, leaves, twigs
Larva Food Source
Wood, inner bark, living plant tissues
Biting/stinging
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 longhorn beetle
Common
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Distribution Area of Brown longhorn beetle
Austria
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Life Cycle of Brown longhorn beetle
Egg The eggs of brown longhorn beetle are small and oval. Usually laid in clusters, they are initially creamy white and darken as they develop. Incubation period varies, during which the egg increases slightly in size.
Larva Upon hatching, the brown longhorn beetle larva is elongated, legless, and pale white, with distinct chewing mouthparts for feeding on host plants. Growth involves molting multiple times, each stage (instar) significantly larger than the previous one.
Pupal As brown longhorn beetle enters pupation, it develops a protective cocoon or cell. The immobile pupa undergoes drastic transformation within, rearranging body structures. Color and shape change significantly as adult features form.
Adult Emerging from the pupa, the adult brown longhorn beetle exhibits hardened, usually brown exoskeleton, and developed wings. It is significantly larger, with pronounced mandibles and antennae used for sensing. Adults focus on feeding, mating, and dispersal.
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Interesting Facts About Brown longhorn beetle
The larvae of brown longhorn beetle can vibrate wood fibers to communicate, an extraordinary behavior termed 'stridulation.'
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Scientific Classification of Brown longhorn beetle
Tips for Finding Brown longhorn beetle
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Youth Habitat of Brown longhorn beetle
Forests and Woodlands, Rotting and Decaying Matter
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Adult Habitat of Brown longhorn beetle
Forests and Woodlands
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How Can You Attract Brown longhorn beetle
Brown longhorn beetle in its adult stage may be attracted to certain chemical pheromones or odors that mimic those released by trees or potential mates.
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What is the Best Weather to Observe Brown longhorn beetle
Adult brown longhorn beetle are generally more active during warm, sunny weather without strong winds or rain. For larvae, weather is less of a factor as they are often found within the host trees or under the bark where they are somewhat protected from environmental conditions.
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How and Where Can You Find Brown longhorn beetle at Different Life Stages
Larva Brown longhorn beetle larvae are wood-borers often found within dead or dying trees. To find them, inspect trees with exit holes or sawdust-like frass around the base, and you might locate the larvae inside by carefully removing sections of bark or by using specialized extraction tools.
Pupal Brown longhorn beetle pupae are usually hidden within the wooden galleries created by the larvae. They can typically be found by carefully dissecting infested wood during the time period just before the emergence of the adults, which varies depending on the climate.
Adult Brown longhorn beetle adults can often be found on or near host plants upon which they feed or lay their eggs. They are usually more visible during late afternoon and can be found by visually searching the foliage, flowers, or around lights at night where they might be attracted.
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Harmful Effects of Brown longhorn beetle
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Forestry Pest

Brown longhorn beetle larvae bore into the stems and branches of deciduous trees, weakening the structural integrity. Infestations can lead to branch dieback and, in severe cases, tree death. This can impact ecosystems and timber production, potentially affecting human industries dependent on these resources.

More Effects of Brown longhorn beetle

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