１属１種。Scirtothrips属に似るが本属は触角が７節であることで識別できる。本種はこれまで本州から知られており、５～６月にスダジイやマテバシイなどブナ科の花や新葉から得られている。

This monotypic genus is very similar to Scirtothrips but can be distinguished from the latter genus by 7-segmented antennae. This species has been recorded from Honshu. It occurs on the flowers or young leaves of Fagaceae such as Castanopsis sieboldii and Lithocarpus edulis.

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  Female

  

  Female

  

  Female

  

  Female head and thorax