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Stenus palposus
''Stenus palposus'' (also known as ''Metastenus palposus'' or the Lough Neagh camphor beetle) is a species of beetle of the subfamily Steninae in the family Staphylinidae. As a predatory insect, it feeds on other smaller arthropods such as springtails.〔
It is now restricted to parts of northern Europe such as Sweden, Finland and Russia,〔〔 having gone extinct in areas like Lough Neagh in Northern Ireland sometime before 1996.〔 It lives in damp areas of open fine sand beaches where they have been observed hunting by running their prey down.〔
==Biology==
Belonging to the rove beetle family, Staphylinidae, these beetles have a segmented abdomen, with shortened wing cases and are typically very small.〔 Due to their similarity, the Staphylinidae beetles are quite difficult to identify, however their silvery hairs on their elytra are a unique identifier for this species. The Steninae have two glands near the base of the tail which release a surfactant that can propel them across water.〔
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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