Studies on the Life History and Life Stages of the Black Cowpea Moth, Cydia Ptychora

  • J. I. Olaifa
  • A. E. Akingbohungbe


1. Under laboratory conditions (25 to 27°C), female Cydia ptychora (Meyrick) laid an average of 44 eggs. 2. The egg incubation period was 5 days, while the larval developmental period lasted 7 to 10 days, and the pupal period 12 days. Thus, the total developmental period (egg to adult) lasted 24 to 27 days. The adult longevity averaged 10 days (13 to 15 days). 3. Descriptions of the different life stages and setal maps of the different larval instars are provided.

Key Words

Anal chaetotaxy cremaster crotchet endophallous fecundity genitalia harpagone headcapsule incubation ocellus pinnaculum proprioceptor shield spines ventromeson 


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  1. Dyar H. G. (1894) A classification of lepidopterous larvae. Ann. N.Y. Acad. Sci. 8, 194–232.CrossRefGoogle Scholar
  2. Hinton H. E. (1946) On the homology and nomenclature of the setae of lepidopterous larvae with some notes on the phylogeny of the Lepidoptera. Trans. R. ent. Soc. Lond. 97(1), 1–37.CrossRefGoogle Scholar
  3. Mackay M. R. (1959) Larvae of the north American Olethreutidae (Lepidoptera). Can. Entomol. 91 (Supplement 10), 1–338.Google Scholar
  4. Taylor T. A. (1965) Observations on the bionomics of Laspeyresia ptychora Meyrick (Lepidoptera: Eucosmi-dae) infesting cowpea in Nigeria. Bull. ent. Res. 55(4), 761–773.CrossRefGoogle Scholar
  5. Wright D. W. and Geering Q. A. (1948) The biology and control of the pea moth Laspeyresia nigricana Steph. Bull. ent. Res. 39, 57–84.CrossRefGoogle Scholar

Copyright information

© ICIPE 1981

Authors and Affiliations

  • J. I. Olaifa
    • 1
  • A. E. Akingbohungbe
    • 1
  1. 1.Department of Plant ScienceUniversity of IfeIle-IfeNigeria

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