Journal of Forest Research

, Volume 3, Issue 1, pp 61–65 | Cite as

Reproductive traits and diel activity of adultMonochamus saltuarius (Coleoptera: Cerambycidae) at two different temperatures

  • Yusuke Nakayama
  • Shota Jikumaru
  • Katsumi Togashi
Original Articles


To investigate the reproductive traits and diel activity ofMonochamus saltuarius, 14 pairs of the adults were reared and observed at each of 20°C and 25°C. Both sexes were more active at 25°C than at 20°C irrespective of the presence or absence of light. A diel change in behavior during 24 h was found on 33% of a total of 48 observations of three age classes of both sexes. No significant difference was found in the mean longevity between sexes or between the two temperature conditions. The time required for reproductive maturation showed no significant difference within the same sex when reared at 20°C and 25°C. The mean oviposition period was significantly longer at 25°C (28.8 days) than at 20°C (12.2 days). The mean lifetime fecundity was significantly greater at 25°C than at 20°C. There was no significant difference in the oviposition ratio (number of eggs deposited/number of oviposition wounds excavated), oviposition rate or hatchability for females between the two temperature conditions.

Key words

Cerambycidae diel activity Monochamus saltuarius reproductive traits temperature effect 


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Copyright information

© The Japanese Forest Society and Springer 1998

Authors and Affiliations

  • Yusuke Nakayama
    • 1
  • Shota Jikumaru
    • 1
  • Katsumi Togashi
    • 1
  1. 1.Faculty of Integrated Arts and SciencesHiroshima University, Higashi-HiroshimaHiroshimaJapan

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