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It is a species of Heteropterna. Matile's major revision does not give a Chinese species by septemtrionalis was recorded from China by Xu et al. (2007). The only 'but' I have is that it could be that too few of the apical flagellar segments are yellow for this specimen to be septemtrionalis. In Matile's key it says four apical segments but here it is only two (or maybe three; difficult to make out exactly).