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长安拟叩甲ＡｎａｄａｓｔｕｓＬｏｎｇｉｏｒＡｒｒｏｗ是苏铁ＣｙｃａｓｒｅｖｏｌｕｔａＴｈｕｍｂ叶部的主要害虫，成虫期长，危害期二个月，危害严重，造成苏铁嫩梢焦枯甚至死亡，大大降低苏铁的观赏价值．而苏铁属珍稀保护的、观赏的园林树种，资源匮乏．成虫、幼虫为害不同寄主，需要在二种植物中完成年生活史．成虫噬食苏铁嫩叶；幼虫蛀茎，取食禾本科狗尾草Ｓｅｔａｒｉａｖｉｒｉｄｉｓ（Ｌ．）Ｂｅａｕｖ、金色狗尾草Ｓ．ｇｌａｕｃｅ（Ｌ．）Ｂｅａｕｖ、狼尾草Ｐｅｎｒｉｓｅｔｕｍａｌｏｐｅｃｕｒｏｉｄｅｓ（Ｌ．）Ｓｐｒｅｎｇ、马塘ＤｉｇｉｔａｒｉａｖｉｏｌａｓｃｅｎｓＬｉｎｋ．的髓部及皮层．一年一代，以老熟幼虫在干枯的草茎中越冬．
AnadastusLongiorArrow is the main insect pest of CycasrevolutaThumb in the Cycasrevoluta. The adult worm is long and harms for a period of two months, causing serious damage to the shoots and even death of the tender shoots of the cycad, greatly reducing the ornamental value of cycads. The cycads are rare protected, ornamental garden tree species, lack of resources. Adults and larvae harm different hosts, and annual life histories need to be completed in both plants. Adults feed on young leaves of cycads; the larvae secrete stems and feed on Setaria viridis (L.) Beauv, S. Setaria viridis. glauce (L.) Beauv, Pennisetum lopeuroides (L.) Spreng, Digitaria violascensLink. The pith and cortex. From one year old, mature larvae winter in dry grass stems.