Soldier-like Nymphs in the Pemphigid Aphid Colophina clematicola (Pemphigidae : Aphidoidea) :

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Author(s)

Abstract

Three species of the genus Colophina produce sterile soldiers in addition to normal first-instar nymphs, while C. clematicola has been reported to produce monomorphic, defensive first instars. This study revealed that in the first instars of C. clematicola there are three morphs, which consist of minor and major morphs and a soldier-like morph. Minor and major nymphs seem to develop into apterous and alate adults, respectively. Soldier-like nymphs are basically sterile and not morphologically specialized compared with soldiers of other Colophina species. It is supposed that the soldier-like nymphs have a function of low-intensity defense, such as the crushing of predator eggs.

Three species of the genus Colophina produce sterile soldiers in addition to normal first-instar nymphs, while C. clematicola has been reported to produce monomorphic, defensive first instars. This study revealed that in the first instars of C. clematicola there are three morphs, which consist of minor and major morphs and a soldier-like morph. Minor and major nymphs seem to develop into apterous and alate adults, respectively. Soldier-like nymphs are basically sterile and not morphologically specialized compared with soldiers of other Colophina species. It is supposed that the soldier-like nymphs have a function of low-intensity defense, such as the crushing of predator eggs.

Journal

  • Entomological science

    Entomological science 1(1), 33-36, 1998

    Entomological Society of Japan

References:  10

Codes

  • NII Article ID (NAID)
    110003374474
  • NII NACSIS-CAT ID (NCID)
    AA11217633
  • Text Lang
    ENG
  • Article Type
    ART
  • ISSN
    13438786
  • NDL Article ID
    4591858
  • NDL Source Classification
    ZR4(科学技術--生物学--動物)
  • NDL Call No.
    Z54-J320
  • Data Source
    CJP  NDL  NII-ELS  IR  NDL-Digital 
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