International Journal of Tropical Insect Science

, Volume 7, Issue 6, pp 795–802 | Cite as

Studies on the Biology of the Palm Aphid, Cerataphis palmae (Ghesquierei) ( = Cerataphis variabilis Hille Ris Lambers) (Homoptera:Pemphigidae) on Raphia hookeri—II

Morphology of the Immature Stages
  • D. A. Enobakhare
  • E. O. Osisanya
Research Article


Four instars of Cerataphis palmae (Ghesquierei) ( = Cerataphis variabilis H.R.L.) were identified from laboratory-bred and field-collected alatoid and apterous immatures through morphometric studies. These were distinguished most readily by the number and shape of antennal segments, body size, degree of development of the thorax, the presence or absence of wing pads and crenulations on body margin.

Key Words

Cerataphis palmae Raphia hookeri alatoid morphology instars 


Quatre spécimens de Ceretaphis palmae H.R.L. étaient identifiés à travers des études mor-phometriques sur alatoid et apterous puérils d’origine de laboratoire et de plantation. Ces spécimens se sont distingués aussi rapidement par le nombre et la configuration de segments à antenne, qualité, degré du développement du thorax, présence ou absence de pattes à ailes et la crénulation des bords du corps.

Mots Clefs

Cerataphis palmae Raphia hookeru alatoid morphologie spécimens 


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  1. Blackmail R. L. and Eastop V. F. (1984) Aphids on the Worlds Crops: An Identification and Information Guide. Wiley, New York.Google Scholar
  2. Eastop V. F. (1961) A Study of the Aphididae (Homoptera) of West Africa. Clowes, London.Google Scholar
  3. Emden H. F. van, Eastop V. F., Hughes R. D. and Way M. J. (1969) The ecology of Myzus persicae. A. Rev. Ent. 14, 197–270.CrossRefGoogle Scholar
  4. Emden H. F. van (Ed.) (1972) Aphid Technology. Academic Press, London.Google Scholar
  5. Kennedy J.S. and Booth C. O. (1951) Host alternations in Aphis fabae Scop. 1. Feeding preferences and fecundity in relation to the age and kind of leaves. Ann. appl Biol. 38, 25–64.CrossRefGoogle Scholar
  6. Lambers H. R. (1953) Cerataphis variabilis sp.n. Africa. Agric. J. Fiji 24, 95.Google Scholar
  7. Louis D. (1974) The life cycles and immature stages of the Reduviidae (Hemiptera: Heteroptera) of the cocoa farms in Ghana. Occ. Publ. ent. Soc. Nigeria 13, 3–53.Google Scholar

Copyright information

© ICIPE 1986

Authors and Affiliations

  • D. A. Enobakhare
    • 1
  • E. O. Osisanya
    • 1
  1. 1.Department of Agricultural BiologyUniversity of IbadanIbadanNigeria

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