本種はこれまで群馬県と山梨県のやや高地から記録されているが、山地に広く分布すると思われる。成虫は５～６月にカツラの葉に見られる。シキミに見られるS. illiciiによく似るが、腹部腹板は後方の半分以上がS1刺毛の間を除き、微刺に覆われることで識別できる（S. illiciiでは微刺はS1刺毛に達しないか、達しても後縁付近にある）。

This species has been recorded from mountainous area of Gunma and Yamanashi Prefectures at central Honshu so far. It occurs on the leaves of Cercidiphyllum japonicum in May to Jun. It is very similar to S. illicii, which occurs on Illicium anisatum, but it can be distinguished from illicii by the abdominal sternites are covered with the microtrichia more than posterior half except between S1 setae (in illicii, the sternites with the microtrichia not reaching S1 setae, or if reaching S1 setae, the microtrichia near posterior margin).

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  Female

  

  Female

  

  Female

  

  Habitat：Cercidiphyllum japonicum　カツラ