›› 2009, Vol. 52 ›› Issue (2): 228-233.

• 研究论文 • 上一篇    


肖银波, 周建华, 刘艳, 张德奎, 冯波   

  • 出版日期:2009-03-18 发布日期:2009-02-20
  • 通讯作者: 肖银波

Morphological and biological observations on Stomphastis thraustica Meyrick (Lepidoptera: Gracillariidae), a leaf miner of Jatropha curcas

  • Online:2009-03-18 Published:2009-02-20

摘要: 麻疯树柄细蛾Stomphastis thraustica Meyrick是在我国新发现的麻疯树Jatropha curcas L.潜叶蛾类重要害虫。通过室内饲养与野外调查相结合对该虫形态、发育习性及生活史进行了研究。本文对麻疯树柄细蛾成虫、卵、各龄幼虫和蛹的形态及大小进行了详细描述。95.54%(n=426)的老熟幼虫在10点至18点结茧。89.19%(n=111)在夜间20点至次日凌晨6点羽化。交配在清晨进行, 持续30~210 min不等。87.53%(n=441)的卵在夜间20点以后至次日6点以前产出。卵多产于叶脉边缘与叶片形成的凹陷处。66.77%(n=8 266)的卵产于叶片背面, 其余产于叶片正面。每雌产卵平均60.03粒(n=32)。麻疯树柄细蛾在攀枝花全年均可发育。以成虫在每年2月至5月越冬。一年发生10代以上, 世代重叠明显。以6月室外平均气温25.15℃条件下, 全世代发育需18~20 d。卵期3~4 d, 1龄幼虫期1 d, 2龄幼虫期1~2 d, 3龄幼虫期1~2 d, 4龄幼虫期1~2 d, 5龄幼虫期2~3 d, 预蛹期1 d, 蛹期4~6 d, 成虫产卵前期1 d。

关键词: 麻疯树柄细蛾, 麻疯树, 形态学, 生物学, 生活史

Abstract: A leaf miner of Jatropha curcas L., Stomphastis thraustica Meyrick (Lepidoptera: Gracillariidae), was newly found in China. The morphology, development and life history of the pest were studied both in fields and laboratory. The color, width and length of the pest at each stage were reported in details. The 95.54 percent of the larvae (n=426) climbs out to make cocoon from 10:00 am to 18:00 pm. The 89.19 percent of the eclosion (n=111) takes place from 20:00 pm to 6:00 am. Mating occurs in the early morning and will lasts 30-210 minutes. The 87.53 percent of the eggs are laid during the 20:00 pm to 6:00 am. The adult likes to oviposit in the concave near the leaf nervure. The 66.77 percent (n=8 266) of the eggs are laid on the back of the leaf. Each female can lay 60.03 eggs on average. The moth appears throughout the year in Panzhihua and has to endure the dry season in the adult from February to May. The moth has over ten generations per year in this region and the generations overlap. The development durations of different stages were investigated at natural temperature averaged 25.15℃ in June in fields. The duratin of a whole generation is 18 to 20 days including 3 to 4 days for the egg stage, 1 day for the first instar, 1 to 2 days for the 2nd instar, 1 to 2 days for the 3rd instar, 1 to 2 days for the 4th instar, 2 to 3 days for the 5th instar, 1 day for prepupa, 4 to 6 days for pupa, and 1 day for preoviposition.

Key words: Stomphastis thraustica, Jatropha curcas, morphology, biology, life history