Yellow-spotted Longhorned Beetle

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Chinese Characters 鬱島하늘소
Field Geography/Animals and Plants
Type Animals/Animals
Area Ulleung-gun, Gyeongsangbuk-do
Period Unclassified
Writer Kim Jungrak

    [Detail Information]

    Type Insect
    Scientific Name Psacothea hilaris [Pascoe]
    Biological Classification Animalia 〉 Arthropoda 〉 Insecta 〉 Coleoptera 〉 Cerambycidae
    Habitat Broadleaf trees [mulberry trees and fig trees]
    Body Length 14~30mm
    Breeding Period (Laying Eggs) From late spring to summer
    Lifespan Over one year
[Definition]
An insect in the family Cerambycidae, inhabiting Ulleung-gun, Gyeongsangbuk-do.

[Details]
The yellow-spotted longhorned beetle grows to a size of 14 to 30 millimeters in length. The body is thin and has a long cylindrical shape. It has long antennae that are 2.5 to 3 times longer than the male insect body, and 2 times longer than the female insect body. The body is blackish gray and has many off-white colored patterns on it. There is a vertical line along the middle of the head, and small patterns on either side of the back of the head. There are also long and thick vertical lines on both sides of the pronotum. Various patterns are on the elytra, the mesothorax and the metathorax. The prothorax is thin and long, and there are protrusions on both sides.

The imago of the yellow-spotted longhorned beetle can be observed from June to October. They usually live in mulberry trees and fig trees. Yellow-spotted longhorned beetles are treated as a pest because the larva and the imago gnaw the leaves and bark of these trees. When raising yellow-spotted longhorned beetles artificially, it is known to take approximately 100 days from the egg to the imago. There are currently 296 known species of the family Cerambycidae in Korea. They are distributed in areas such as Korea, Japan, Taiwan and China.

Recently the population numbers of the yellow-spotted longhorned beetle have dropped dramatically. The yellow-spotted longhorned beetle was designated as a ‘Second Grade Endangered Species of Wild Fauna and Flora’ in 1997 by the Ministry of Environment. Ulleung-gun treats the yellow-spotted longhorned beetles as a symbol of the county, and after several failed attempts, has achieved success in raising them artificially. Imago specimens are made into items such as key chains, and sold as tourist souvenirs.

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