小笠原諸島を除く関東以南の常緑広葉樹林に広く分布する。海外では台湾、中国及びベトナムから知られている。ブナ科の常緑樹の枯れ葉に見られるが、特にアカガシに多い。生きている時はB. honorisと同様に腹部の両側に赤い斑紋がある。B. honorisとは触角第3節がより長く、先端部が淡いこと；触角第3節の感覚錘が短いこと；オスの第8腹節背板の角状突起が湾曲しないことなどで区別できる。食菌性。

This species is widely distributed in evergreen broad-leaved forests south of the Kanto region, excluding the Ogasawara Islands. It is also known from Taiwan, China and Vietnam. It is found in the dead leaves of evergreen trees of Fagaceae, and is especially common in Quercus acuta. When alive, this species has red spots on both sides of the abdomen like B. honoris. From B. honoris it can be distinguished by the followings: antennal segment III longer, with pale club head; sense cones on antennal segment III shorter; male tubercles on abdominal tergite VI rather straight. Fungus-feeder.

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  Female macroptera

  

  Female macroptera, head and thorax

  

  Male macroptera

  

  Male macroptera

  

  Male macroptera, abdominal tubercles

  

  Male macroptera, head and thorax