, Volume 46, Issue 3, pp 327–334 | Cite as

A study of polyploidy in races of Japanese weevils (Coleoptera: Curculionidae)

  • Y. Takenouchi

The chromosomes of two Japanese weevils, Blosyrus japonicus Sharp and Callirhopalus (= Pseudocneorhinus) obesus Roelofs, were studied. The former consists of four races: one 2n and bisexual (= Blosyrus falcatus Faust) and three parthenogenetic-4n, 5n, and 6n. In general the races are allopatric. The latter species has two races: 4n and 6n, again with distinct geographical distributions.


Geographical Distribution Distinct Geographical Distribution 
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Copyright information

© Martinus Nijhioff Publishers 1976

Authors and Affiliations

  • Y. Takenouchi
    • 1
  1. 1.Biological Laboratory, Sapporo CollegeHokkaido University of Education SapporoHokkaidoJapan

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