本州中部の山地帯に生息する。これまでの所長野県、山梨県及び福島県などで記録されているが、恐らくブナ帯に広く分布するものと思われる。主にミズナラの枯れ葉に生息する。オスの第6腹節背板にある1対の角状突起はよく発達し内側に湾曲する。食菌性。

This species inhabits the mountainous areas of central Honshu. So far, it has been recorded in Nagano, Yamanashi, and Fukushima prefectures, but it is probably widely distributed in the beech forest belt. It mainly inhabits the dead leaves of Quercus crispula. A pair of tubercles on the abdominal tergite VI of the male are well developed and curved inwards. Fungus-feeder.

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  Female macroptera

  

  Female macroptera, head and thorax

  

  Male macroptera

  

  Male macroptera

  

  Male macroptera

  

  Male macroptera, abdominal tubercles

  

  Male macroptera, head and thorax