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Powderpost beetle
Powderpost beetles are a group of seventy species of woodboring beetles classified in the insect subfamily Lyctinae.〔 These beetles, along with spider beetles, death watch beetles, common furniture beetles, skin beetles, and others, make up the superfamily Bostrichoidea. While most woodborers have a large prothorax, powderpost beetles do not, making their heads more visible. In addition to this, their antennae have two-jointed clubs. They are considered pests and attack deciduous trees, over time reducing the wood to a powdery dust. The damage caused by longhorn beetles (family Cerambycidae) is often confused with that of powderpost beetles, but the two groups are unrelated. Their larvae are white and C-shaped.
==Name==
The term "powderpost" comes from the fact that the larvae of these beetles feed on wood and, given enough time, can reduce it to a mass of fine powder. Because of this behavior, they are considered pests.
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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