Gastrolina depressa thoracica eats specially leaves of Juglans mandshurica and happens 1 generation per year in Liaoning province, and lives through the winter in litters in the forms of imagoes.

• 核桃楸扁叶甲专食核桃楸树叶片,在辽宁省1年发生1代,以成虫在地被物中越冬。