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Western hercules beetle

Western hercules beetle

Dynastes grantii

A species of Hercules beetles, Also known as Grant's rhinoceros beetle

The western hercules beetle (Dynastes grantii) is one of the largest beetles found in the United States. Given their size, they are commonly found in countries that participate in beetle fights. They are normally identified with their light-brown or greyish color, but that is known to darken if the beetle gets wet.

General Info About Western hercules beetle
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Attributes of Western hercules beetle
Colors
Brown
Black
Gray
Habitat
highland forest
Adult Food Sources
Sap, juices of ripe fruits, nectar from flowers, plant fluids, tree bark
Larva Food Source
Decaying wood, leaf litter, composted vegetation, decaying organic matter, rotting logs
Biting/stinging
Not reported
Borer
Not reported
Pollinator
Not reported
Pest-Eating Predatory
Not reported
Phytophagous
The Western hercules 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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Species Status of Western hercules beetle
It lives in Arizona and Utah and in Mexico. They are most commonly in countries in Asia.
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Life Cycle of Western hercules beetle
Egg After being deposited by the adult western hercules beetle, the eggs are small and ovular. They are often laid in the soil or decaying wood and are initially white but may yellow over time. Eggs are the dormant phase, with the embryo developing inside until it hatches.
Larva Upon hatching, the larval western hercules beetle appears as a white, elongated grub, equipped with chewing mouthparts for feeding on decomposing plant matter. The larva undergoes several molts, growing larger, and its color may darken.
Pupal The larva of western hercules beetle forms a pupal casing where transformation occurs. The pupa is generally immobile and undergoes significant changes internally. Its appearance is mottled brown, resembling the surrounding wood or soil.
Adult Emerging from the pupa, the adult western hercules beetle displays a significant change with a hardened exoskeleton, developed wings, and functional reproductive organs. The adult is larger, with pronounced sexual dimorphism and is ready for reproduction and dispersal.
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Adult Size of Western hercules beetle
5 - 8 cm
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Predators of Western hercules beetle Larvae
Birds, rodents, beetles from other species, ants
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Predators of Adult Western hercules beetle
Birds of prey, rodents, larger beetle species, mammalian carnivores
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Interesting Facts About Western hercules beetle
Western hercules beetle can lift objects approximately 850 times its own weight, making it one of nature's most impressive weightlifters.
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Scientific Classification of Western hercules beetle
Tips for Finding Western hercules beetle
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Youth Habitat of Western hercules beetle
Forests and Woodlands, Rotting and Decaying Matter
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Adult Habitat of Western hercules beetle
Forests and Woodlands
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When is the Best Time to Observe Western hercules beetle
The adult western hercules beetle are most active during the night, so the best time to find them is after dusk.
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What is the Best Weather to Observe Western hercules beetle
Western hercules beetle prefer humid and warm weather conditions, as it assists in their feeding and breeding activity.
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How and Where Can You Find Western hercules beetle at Different Life Stages
Larva Western hercules beetle larvae live underground feeding on decomposing plant matter such as rotting wood. To find them, search in the soil near decaying stumps or logs.
Pupal During the pupa stage, western hercules beetle are inactive and typically encased within a pupal cell in the soil. Locating them requires careful excavation around the roots of trees or in the soil where larvae are commonly found.
Adult Western hercules beetle adults can be found on trees, near sources of sap or rotten fruit. Look for them by using a light at night to attract them or by setting up baited traps in areas known to be inhabited by them.
Are Western hercules beetle harmful?
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