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Rugose stag beetle

Rugose stag beetle

Sinodendron rugosum

A species of Sinodendron

The adults of this species exhibit sexual dimorphism, a common trait in Lucanidae, as well as unopposable clubbed antennae. Both sexes are 11–18 millimetres (0.43–0.71 in) in length, black in coloration, and have small mandibles. The pronotum and elytra are covered in many small pits, leading to an overall rugose appearance. The head of the male is much narrower than the pronotum, and has a short, median rhinoceros-like horn. The female either lacks a horn or has a small median tubercle.

General Info About Rugose stag beetle
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Attributes of Rugose stag beetle
Colors
Black
Habitat
Wet woods.
Adult Food Sources
Tree sap, decaying fruits, fermenting plant fluids, weeping wounds of trees, honeydew
Larva Food Source
Decaying wood, leaf litter, organic debris, plant detritus, soil organic matter
Biting/stinging
Not reported
Allergy-causing
Not reported
Defensive attack
Not reported
Venomous
Not reported
Phytophagous
Not reported
Predatory
Not reported
Biting animal or pet
Not reported
Mouthparts Type
Chewing mouthparts
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Distribution Area of Rugose stag beetle
Western North America
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Life Cycle of Rugose stag beetle
Egg Laid in decaying wood, the eggs of rugose stag beetle are small and oval. They embody the dormant potential of the insect, protected by a hard shell.
Larva Upon hatching, the larvae are legged grubs, consuming organic material voraciously. They are pale, soft-bodied, and markedly different from adults.
Pupal The larvae pupate within a cocoon in the substrate. The pupa undergoes transformation quietly, reshaping into adult form while encased.
Adult Emerging from the pupa, the adult rugose stag beetle'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.
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Predators of Adult Rugose stag beetle
Birds, rodents, mammalian insectivores, large spiders
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Interesting Facts About Rugose stag beetle
Rugose stag beetle can rotate its head nearly 360 degrees, a rare ability that aids in navigating its dense woodland habitat.
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Scientific Classification of Rugose stag beetle
Tips for Finding Rugose stag beetle
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Youth Habitat of Rugose stag beetle
Forests and Woodlands, Rotting and Decaying Matter
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Habitat Preferences of Rugose stag beetle Through Different Life Stages
Rugose stag beetle larvae develop within rotten hardwood, where the wood is soft and can be easily consumed. Searching for larvae requires splitting logs or examining the undersides of bark. Adults prefer habitats with abundant deadwood and can often be found on or near the sap flows of hardwood trees or around decaying logs where they feed and mate. To observe adults, inspecting these sources, especially during evening hours when they are most active, is most fruitful.
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When is the Best Time to Observe Rugose stag beetle
Evening and nighttime are suitable times to find adult rugose stag beetle as they are often nocturnal and attracted to light sources.
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What is the Best Weather to Observe Rugose stag beetle
Warm and humid conditions are favorable for finding rugose stag beetle as they prefer moist environments that support the decayed wood and plant matter where they can be found.
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How and Where Can You Find Rugose stag beetle at Different Life Stages
Larva Rugose stag beetle larvae develop inside decaying wood, often in rotting logs or stumps. To find them, one can search for decomposed trees or logs, carefully splitting them open to check for larvae inside.
Pupal Rugose stag beetle pupae are usually found within the same wooden environment as the larvae. During the pupal stage, rugose stag beetle are inactive and may be located by examining the interior of rotting logs where larval tunnels are present.
Adult Adult rugose stag beetle are attracted to light and can also be found around old trees and stumps, especially where sap runs or fermented fruits are present. Searching at night using a flashlight or setting up a light trap can be effective ways to encounter adult rugose stag beetle.
Are Rugose stag beetle harmful?
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