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Scientia Silvae Sinicae ›› 2014, Vol. 50 ›› Issue (12): 87-93.doi: 10.11707/j.1001-7488.20141212

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Reproductive Behavior Traits and Sexual Tendency of the Adult Catocala remissa

Zheng Haixia1, Yan Yi2, Zhang Jintong2, Guo Shuying3, Zong Shixiang4, Liu Hongxia2, Liu Jinlong2, Yang Meihong2   

  1. 1. Agronomy College, Shanxi Agricultural University Taigu 030801;
    2. Institute of Chemical Ecology, Shanxi Agricultural University Taigu 030801;
    3. Ejina Forest Pest Control and Quarantine Station, Inner Mongolia Ejina 735400;
    4. Key Laboratory for Silviculture and Conservation of Ministry of Education, Beijing Forestry University Beijing 100083
  • Received:2013-10-21 Revised:2014-09-21 Online:2014-12-25 Published:2015-01-08

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Abstract:

Catocala remissa (Lepidoptera: Noctuidae)is a defoliator of Populus euphratica. In this paper, adult reproductive behavior, such as eclosion, courtship, mating and oviposition, was investigated under natural conditions in the woods and the sexual tendency of C. remissa was verified by field trap trial. The results showed that the eclosion period of C. remissa lasted for about a month with a peak of eclosion at the mid-June. The daily emergence peak occurred from 21:00 to 23:00. The ratio of female to male was 1:1.02 and the male emerging before the female. The mating and calling behavior was observed at the scotophase. The females called in three days after emergence. The calling peak varied with age of female. In their whole life,both the male and female mated only once. The mating peak occurred at 4:30 and mating behavior was influenced by female age. The mating ability is strongest when females were 6 or 7 days old in which the mating time was shortest. The mated female oviposited sporadically and the oviposition period was 4.9 d. The oviposition behavior of all female moths occurred during the scotophase. The oviposition peak occurred 0:00-2:00 by which the egg quantities accounted for 69.6% of the total. The lifespan of unmated female and male was 19.78 days and 16.11 days on average, whereas that of the mated female and male was 15.44 days and 12.22 days on average. In the field experiment virgin female moths were used as lure to trap the males. The number of the males attracted by the 6 or 7 days old virgin females was the most, significantly more than that trapped by older females. The results showed that the male was attracted by the virgin female before mating within the species. In conclusion, the adult reproductive characters are the first link in controlling the population of C. remissa by interfering sexual communication. The result laid the foundation for sex pheromone-relevant researches.

Key words: Catocala remissa, reproductive behavior, sex pheromone

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