Heterobostrychus ambigenus Lesne @, 1920: 295.

Distribution in mainland China: YN (Chu & Zhang 1997). New record for ZJ #, Gutianshan NNR, 29°25’N 118°12’E, 402m, 2010, local collector (1♀) (NME).

Other distribution. Endemic to China.

Biolog y. Unknown, but likely to be similar to other Heterobostrychus species.