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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4～6d,成虫产卵前期1 d。
Stomphastis thraustica Meyrick is an important pest of Jatropha curcas L., a newly discovered Jatropha curcas L. in China. Through the combination of indoor feeding and field investigation, the morphological, developmental habits and life history of the pest were studied. In this paper, the morphology and size of adults, eggs, larvae and pupae of larvae were described in detail. 95.54% (n = 426) of mature larvae cocoon from 10:00 to 18:00. 89.19% (n = 111) emerged from 20:00 to 6:00 the next day. Mating in the early morning, lasting 30 ~ 210 min range. 87.53% (n = 441) eggs were produced after 20 o’clock at night and before 6 o’clock the next day. Egg prolific in the edge of the veins and leaf depression. 66.77% of the eggs (n = 8 266) were produced on the back of leaves and the rest on the front of leaves. An average of 60.03 eggs were laid per female (n = 32). Jatropha Trichosanthes moth can be developed throughout the year in Panzhihua. Adults in the winter from February to May each year. Occurred over 10 generations a year, overlapping generations clearly. In June the average outdoor temperature of 25.15 ℃ under the conditions of all generations to develop 18 to 20 days. Eggs of 3-4 days, 1st instar larvae of 1 d, 2nd instar larvae of 1 ~ 2 d, 3rd instar larvae of 1 ~ 2 d, 4th instar larvae of 1 ~ 2 d, 5th instar larvae of 2 ~ 3 d, Pre-pupal stage 1 d, pupal stage 4 ~ 6d, adult pre-oviposition 1 d.