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Sexual Size Dimorphism of the Mouthpart and Antenna of Cyllorhynchites ursulus in Korea

한국에 서식하는 도토리거위벌레(Cyllorhynchites ursulus) 구기 및 더듬이 길이의 성적이형성 연구

  • Kim, Ji Young (Division of Basic Research, Bureau of Ecological Research, National Institute of Ecology) ;
  • Kim, Yung Kun (Division of Basic Research, Bureau of Ecological Research, National Institute of Ecology) ;
  • Lee, Yoo Ran (Division of Basic Research, Bureau of Ecological Research, National Institute of Ecology) ;
  • Lee, Eunok (Division of Basic Research, Bureau of Ecological Research, National Institute of Ecology)
  • 김지영 (국립생태원 생태연구본부 생태기반연구실) ;
  • 김영건 (국립생태원 생태연구본부 생태기반연구실) ;
  • 이유란 (국립생태원 생태연구본부 생태기반연구실) ;
  • 이은옥 (국립생태원 생태연구본부 생태기반연구실)
  • Received : 2017.10.26
  • Accepted : 2017.11.20
  • Published : 2017.12.31

Abstract

Sexual dimorphism of the mouthpart, antenna and mandible of the Cyllorhynchites ursulus in South Korea was studied with linear measurements. The mouthpart and antenna measurements were conducted with a stereoscopic microscope using 122 specimens (72 males and 50 females). Microscopic observation of the mandible were conducted with a Field Emission Scanning Electron Microscope (FE-SEM) using 103 specimens (73 males and 30 females). Results showed that the size difference between males and females was significant in the size of the mouthpart and antenna. On the other hand, we could not detect sexual size dimorphism in the microstructure of the mandible. The bivariate plots made by the result of Principal Component Analysis (PCA) and Discriminant Analysis (DA) showed a size dimorphism in the size of the mouthpart and the antenna between males and females. Based on our study, sexual dimorphism in the mouthpart and antenna exists in C. ursulus from the South Korean population, and this difference seems to be related to the behavioral differences between males and females.

Keywords

References

  1. Byeon BH. 1991. Pest of September to October - Mechoris ursulus. Landscaping Tree 4:9-9.
  2. Hammer O, Harper DAT and PD Ryan. 2001. PAST: Paleontological Statistics Software Package for Education and Data Analysis. Palaeontol. Electronica 4:9. Available at http://palaeo-electronica.org/2001_1/past/issue1_01.htm.
  3. Igarashi M. 1985. Ecological characteristics of the pine sawyer in Tohoku district. Annual Report of Tohoku Branch Station of Forest Experiment Station 26:103-112.
  4. Kim YJ, Moon SR, Yoon CM and GH Kim. 2010. Measurement and comparison of morphology of developmental stages of chestnut weevil, Curculio sikkimensis. Korean J. Appl. Entomol. 49:11-16. https://doi.org/10.5656/KSAE.2010.49.1.011
  5. Lee KH. 1997. Oviposition and branch-cutting behavior of Mechoris ursulus roelofs. MSc thesis. Seoul National. University.
  6. Mun IS. 2011. Disease and pest control - Disease and insect pest of laucl scapicy tree - cutting down oak branches Mechoris ursulus. Landscaping Tree 123:31-32.
  7. Noh HC. 1999. Reproductive behavior and strategies for malemale competition of Mechoris ursulus Roelofs (Coleoptera: Attelabidae). MSc thesis. Seoul National University.
  8. Park JY. 2005. Study on systematics and ecology of the attelabidae (coleoptera) from Korea. PhD thesis. Andong National University.
  9. Park JY and JG Park. 2014. Analysis of host preference of subfamily apoderinae (coleoptera: Attelabidae). Korean J. Nat. Conserv. 8:39-46. https://doi.org/10.11624/KJNC.2014.8.1.039
  10. Sawada Y. 1993. A systematic study of the family Rhynchitidae of Japan (Coleopera: Curculionoidea). Human and Nature 2:1-93.
  11. Silvano B, Enzo C and Jean CR. 2013. A new species of Cyllorhynchites Voss from Libya. J. Insect Biodivers. 1:1-6.