| 摘要: |
| 2000-03从陕西武功采集花绒坚甲成虫360头，每5头l组放人用杨树木块凿制的人工虫道内，在实验室中饲养，观测其生物学特性。结果表明，花绒坚甲成虫寿命3年以上，3年内可连续发生6代及2l对姊妹代，世代重叠。成虫10月上旬开始在虫道内越冬，翌年3月下旬开始活动，越冬成虫1年产卵2次，卵期平均12.7 d，幼虫期平均8.4 d，茧蛹期平均25.6 d。第1次和第2次产卵发育的成虫分别为第l姊妹代和第2姊妹代成虫。第l姊妹代成虫部分于8月上旬开始产卵，9月中旬产卵结束，9月下旬第2代成虫羽化；第2姊妹代成虫当年不产卵。 |
| 关键词: 花绒坚甲 生物学特性 生活史 发育动态 生活习性 |
| DOI： |
| 分类号: |
| 基金项目:国家“十五”科技攻关项目(2001BA509B1011) |
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| A study on biological feature of Dastarcus longulus |
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| Abstract: |
| We collected 360 adults of Dastarcus longulus from Wugong,Shaanxi province in March of 2000.Every 5 adults as a group are put in the artificial tunnels made of poplar wood.They are reared in the laboratory and observe and record their biological features.The results showed that the adult life of Dastarcus longulus is over three years.In laboratory,the adult breeds no more than 6 generations and 21 couples of sister generations in three years.The adults hibernate in artificial tunnels after mid October.In the early March of the next year,adults begin to be active.Hibernant adults lay eggs twice in a year,egg period is 12.7 days,larva period is 8.4 days,the pupa period is 25.6 days.Only some of the first sister generation adults begin to lay eggs in the early August and end in mid September.The second generation adults emerge in late September.The second sister generation adults don’t lay eggs in this year. |
| Key words: Dastarcus longulus biological feature life cycle dynamics of development life habit |
