The Distribution of the Eggs of the Sorghum Shootfly, Atherigona Soccata Rondani (Diptera:Muscidae)

  • Aex G. L. Delobel


Field and laboratory observations revealed that the placement of eggs of the sorghum shootfly, Atherigona soccata, among sorghum stems tended to be random or slightly aggregated rather than regular, which suggests that the site of oviposition by a female is little or not determined by the presence of other eggs already laid. The possible effects of this type of distribution on the mortality of the first-instar larvae are briefly discussed.

Key Words

Sorghum shootfly oviposition distribution of eggs Atherigona soccata Sorghum bicolor 


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. Anscombe F. J. (1949) The statistical analysis of insect counts based on the Negative Binomial distribution. Biometrics 5, 165–173.CrossRefGoogle Scholar
  2. Arbogast R. T. and Mullen M. A. (1978) Spatial distribution of eggs by ovipositing Indian meal moths, Plodia interpunctella (Hübner) (Lepidoptera: Pyralidae). Researches Popul. Ecol. Kyoto Univ. 19, 148–154.CrossRefGoogle Scholar
  3. Bardner R. and Lofty J. (1971) The distribution of eggs, larvae and plants within crop attacked by wheat-bulb fly Leptohylemyia coarctata (Fall.). J. appl. Ecol. 8, 683–686.CrossRefGoogle Scholar
  4. Bliss C. I. and Fisher R. A. (1953) Fitting the Negative Binomial distribution to biological data with a note on the efficient fitting of the negative binomial. Biometrics 9, 176–200.CrossRefGoogle Scholar
  5. Haeflinger E. (1953) Das Auswahlvermögen der Kirschenfliege bei der Eiablage (eine statistiche Studie). Mitt. schweiz. ent. Ges. 26, 258–264.Google Scholar
  6. Harcourt D. G. (1961) Spatial pattern of the imported cabbage-worm, Pieris rapae (L.) (Lepidoptera: Pieridae) on cultivated Cruciferae. Can. Ent. 43, 945–952.CrossRefGoogle Scholar
  7. Katsoyannos B. I. (1975) Oviposition-deterring, male arresting, fruit-marking pheromone in Rhagoletis cerasi. Envir. Ent. 4, 801–807.CrossRefGoogle Scholar
  8. Kempthorne O. (1973) The Design and Analysis of Experiments. Knege, Huntington, New York.Google Scholar
  9. Lamotie M. (1957) Initiation aux Méthodes Statistiques en Biologie. Masson & Cie, Paris.Google Scholar
  10. Martin H. (1948) Observations biologiques et essais de traitement contre la mouche de l’olive (Dacus oleae Rossi) dans la province de Terragone (Espagne) de 1946 à 1948. Mitt schweiz ent. Ges. 21, 361–402.Google Scholar
  11. Morisita M. (1962) -index, a measure of dispersion of individuals. Researches Popul. Ecol. Kyoto. Univ. 4, 1–7.CrossRefGoogle Scholar
  12. Morisita M. (1964) Application of -index to sampling techniques. Researches Popul. Ecol. Kyoto Univ. 6, 43–53.CrossRefGoogle Scholar
  13. Ogwaro K. (1978) Ovipositional behaviour and host-plant preference of the sorghum shoot fly, Atherigona soccata (Diptera: Anthomyiidae). Entomologia exp. appl. 23, 189–199.CrossRefGoogle Scholar
  14. Pieters E. P. and Sterling W. L. (1974) Aggregation indices of cotton anthropods in Texas. Envir. Ent. 3, 598–600.CrossRefGoogle Scholar
  15. Pritchard G. (1969) The ecology of a natural population of the Queensland fruit fly, Dacus tryoni—II. The distribution of eggs and its relation to behaviour. Aust. J. Zool. 17, 293–311.CrossRefGoogle Scholar
  16. Prokopy R. J. (1972) Evidence for a marking pheromone deterring repeated oviposition in apple maggot flies. Envir. Ent. 1, 326–332.CrossRefGoogle Scholar
  17. Prokopy R. J. (1975) Oviposition-deterring fruit-marking pheromone in Rhagoletis fausta. Envir. Ent. 4, 298–300.Google Scholar
  18. Raina A. K. (1981) Deterrence of repeated oviposition in sorghum shootfly, Atherigona soccata. J. chem. Ecol (in press).Google Scholar
  19. Southwood T. R. E. (1966) Ecological Methods. Methuen, London.Google Scholar
  20. Taylor L. R. (1961) Aggregation, variance and the mean. Nature, Land. 189, 732–735.CrossRefGoogle Scholar
  21. Wadley F. M. (1950) Notes on the form of distribution of insect and plant populations. Ann. ent. Soc. Am. 43, 581–586.CrossRefGoogle Scholar
  22. Waters W. E. (1959) A quantitative measure of aggregation in insects. J. econ. Ent. 52, 1180–1184.CrossRefGoogle Scholar

Copyright information

© ICIPE 1981

Authors and Affiliations

  • Aex G. L. Delobel
    • 1
  1. 1.International Centre of Insect Physiology and EcologyNairobiKenya

Personalised recommendations