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Hylastes ater
''Hylastes ater'' is a species of beetle in the family Curculionidae, the true weevils. It is a bark beetle, a member of the subfamily Scolytinae. Its common name is the black pine bark beetle. It is native to Europe and parts of Asia, including China and Korea. It is known as an introduced species in many other regions, including Australia, New Zealand, the Americas, and South Africa. It is a pest of pines and other trees, and it is widespread in areas where pine trees are cultivated. The species "is an important threat to the biosecurity of all forested countries."〔(''Hylastes ater''. ) Global Invasive Species Database. ISSG.〕
==Description==
This beetle is cylindrical in shape and 3.5 to 5.5 millimeters long by about 1.4 millimeters wide. It is dark gray or shiny black with reddish antennae and legs. The newly hatched beetle is entirely reddish, and its color darkens over time. The elytra, the front of the face, and most of the prothorax are punctate. The head is bent downward, so just a small part is visible from above. The rostrum is short, not elongated into a typical weevil snout. The whitish egg is less than one millimeter long, and the larva is c-shaped, legless, and white with an amber-colored head capsule. The pupa is "mummy-like",〔 yellowish-white, and spiny.〔(''Hylastes ater''. ) Technical Fact Sheet. Plantwise. CABI.〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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