, Volume 31, Issue 4, pp 331–335 | Cite as

Predation byCheilomenes vicina [Coleoptera: Coccinellidae] on the cowpea aphid,Aphis craccivora [Homoptera: Aphididae]: Effect of prey stage and density

  • T. I. Ofuya


Consumption of larvae and females ofAphis craccivora Koch by 1st and 4th larvae and adults ofCheilomenes vicina (Muls.) was studied under fluctuating temperature (24–30°C). The early aphid instars were consumed in significantly greater numbers than later instars and females.

The feeding rates ofC. vicina were significantly positively correlated with the population density of prey. The number of prey consumed daily by each predator stage tested, increased more steeply at lower than at higher prey densities, exhibiting thus the type 2 functional response


Cheilomenes vicina Aphis craccivora prey consumption positive correlation type 2 functional response 


Consommation des larves et des ♀ d'Aphis craccivora par les11e stades, les 4e stades et les adultes deCheilomenes vicina a été étudiée à une température variant de 24 à 30°C. Les jeunes stades du puceron sont consommés en nombre plus grand significativement que les derniers stades et les ♂.

Les taux d'alimentation deC. vicina manifestent une corrélation hautement significative avec la densité de population de la proie. Le nombre de proies consommées quotidiennement par chaque stade considéré du prédateur augmentait plus brusquement aux faibles qu'aux fortes densités de proies, manifestant ainsi chez le prédateur le type 2 de réponse fonctionnelle.


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  1. Bohlen, E. — 1983. Crop Pest in Tanzania and Their Control. —Verlag Paul Parey, Berlin.Google Scholar
  2. Booker, R.H. — 1954. The effect of sowing data and spacing on rosette disease of groundnut in Northern Nigeria, with observations on the vector,Aphis craccivora. —Ann. Appl. Biol., 52, 125–131.Google Scholar
  3. Brown, H.D. — 1974. Defensive behaviour of the wheat aphid,Schizaphis graminum (Rondani) [Hemiptera: Aphididae] against Coccinellidae —J. Entomol. (A), 48, 157–165.Google Scholar
  4. Dixon, A.F.G. — 1958. The escape responses shown by certain aphids to the presence of coccinellids,Adalia decempunctata (L.). —Trans. R. Entomol. Soc. Lond., 110, 319–334.Google Scholar
  5. Don-Pedro, K.N. — 1980. A population explosion ofAphis craccivora following DDT application in a cowpea plot,Vigna unguiculata cultivar (Prima), in Nigeria. —J. Nat. Hist., 14, 617–619.Google Scholar
  6. Firempong, S. &Kumar, R. — 1975. Natural enemies ofToxoptera aurantii (Boy.) [Homoptera: Aphididae] on cocoa in Ghana. —Biol. J. Linn. Soc., 7, 261–292.Google Scholar
  7. Hodek, I. — 1967. Bionomics and ecology of predaceous Coccinellidae. —Annu. Rev. Entomol., 18, 79–104.Google Scholar
  8. Hodek, I. — 1973. Biology of Coccinellidae. —Academic, Prague.Google Scholar
  9. Holling, C.S. — 1959. Some characteristics of simple types of predation and parasitism. —Can. Entomol., 91, 385–398.Google Scholar
  10. Holling, C.S. — 1966. The functional response of Intertebrate predators to prey density. —Mem. Entomol. Soc. Can., 48, 1–86.Google Scholar
  11. Laing, J.E. &Osborn, A.L. — 1974. The effect of prey density on the functional and numerial responses of three species of predaceous mites. —Entomophaga, 19, 267–277.Google Scholar
  12. Ofuya, T.I. — (in press). Laboratory observations on the life history ofCheilomenes vicina (Muls.) [Coleoptera: Coccinellidae], a predator of the cowpea aphid,Aphis craccivora Kock [Homoptera: Aphididae].Google Scholar

Copyright information

© Lavoisier Abonnements 1986

Authors and Affiliations

  • T. I. Ofuya
    • 1
  1. 1.Department of Plant ScienceUniversity of IfeIle-IfeNigeria

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