Egg length of Anastrepha obliqua Macquart (Diptera, Tephritidae) according to oviposition rate and maternal age

Isabel C. Boleli M. Madalena da Costa Teles About the authors

Abstract

The length of the entire egg, micropile and vitellus regions of Anastrepha obliqua Macquart, 1835 were measured during all opposition period. Obtained values were compared among them and with oviposition rate. The smallest eggs were produced during the first 35 oviposition days, period where the highest oviposition rate occured. The decrease in egg length was found to be due to a descrease in the vitellus region. Micropile length was found to be pratically constant throughout oviposition. Furthermore, no relationship between maternal age and length was detectable.

Anastrepha obliqua; fruit fly; egg length; oviposition rate


Egg length of Anastrepha obliqua Macquart (Diptera, Tephritidae) according to oviposition rate and maternal age

Isabel C. Boleli; M. Madalena da Costa Teles

Departamento de Biologia, Universidade de São Paulo, Av. Bandeirantes, 3900, 14031-450 Ribeirão Preto, São Paulo, Brasil

ABSTRACT

The length of the entire egg, micropile and vitellus regions of Anastrepha obliqua Macquart, 1835 were measured during all opposition period. Obtained values were compared among them and with oviposition rate. The smallest eggs were produced during the first 35 oviposition days, period where the highest oviposition rate occured. The decrease in egg length was found to be due to a descrease in the vitellus region. Micropile length was found to be pratically constant throughout oviposition. Furthermore, no relationship between maternal age and length was detectable.

Key words: Anastrepha obliqua, fruit fly, egg length, oviposition rate

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ACKNOWLEDGMENTS. The authors are grateful to "Coordenadoria de Aperfeiçoamento de Pessoal de Nível Superior" (CAPES) for financial support, and to COPERSUCAR for permitting the use of their orchard for fruit collection.

BIBLIOGRAPHIC REFERENCES

Recebido em 10.IV.1992; aceito em 25.V.1993.

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Publication Dates

  • Publication in this collection
    06 Aug 2009
  • Date of issue
    1992

History

  • Accepted
    25 May 1993
  • Received
    10 Apr 1992
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