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animal
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Taiwan corner marrow Stag beetles
nigidius formosanus
锹形虫科/鞘翅目
外观特徵:
体长18~22mm。体色黑色。雌雄外观无明显差异。辨识重点是眼缘突起发达,外缘呈圆弧形,下缘呈水平状横切,并与前胸背板外缘前端的片状突起相互对称。
生态习性:
成虫出现于6至10月,生活在南部低海拔山区,屏东县族群较稳定。夜晚无明显趋光性,朽木中较容易发现成虫。