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IMMATURE STAGES AND BIOLOGY OF PODISUS PLACIDUS AND STIRETRUS FIMBRIATUS (HEMIPTERA: PENTATOMIDAE)1

Published online by Cambridge University Press:  31 May 2012

Ronald D. Oetting  and
Thomas R. Yonke
Ronald D. Oetting
Affiliation:
Department of Entomology, University of Missouri, Columbia
Thomas R. Yonke
Affiliation:
Department of Entomology, University of Missouri, Columbia
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Abstract

The egg and five nymphal instars of Podisus placidus Uhler and Stiretrus fimbriatus (Say) are described and illustrated. The nymphal instars can be separated on the basis of head width or pronotal width. No overlap was encountered in the nymphal instars studied.P. placidus overwinters as an adult. Egg development in the laboratory took approximately 6.0 days. The average time spent in each of the five nymphal stages was 5.4, 4.6, 4.9, 4.7, and 7.6 days, respectively. Development of S. fimbriatus eggs took approximately 9.5 days. The average time spent in each of the five nymphal instars was 5.1, 4.3, 4.1, 4.3, and 8.2 days, respectively. Adults of S. fimbriatus were parasitized by Cylindromyia fumipennis (Bigot) (Tachinidae).

Type
Articles
Information
The Canadian Entomologist , Volume 103 , Issue 11 , November 1971 , pp. 1505 - 1516
Copyright
Copyright © Entomological Society of Canada 1971

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