The masked hunter’s distribution extends throughout the Holarctic region, having been introduced to North America from Europe by man. In the UK most records are from southern and central England.Since the development of human habitation the masked hunter appears to have become a synanthrope. However it is also found free living in drier regions of the United States, and even in hollow trees in the UK.The species is not endangered, but records from the UK have dwindled in recent years. This is perhaps due to increased hygiene levels and a resulting decline in the household pests upon which it feeds.
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