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Temperature preference in Triatoma infestans (Hemiptera: Reduviidae)

Published online by Cambridge University Press:  10 July 2009

Claudio R. Lazzari
Claudio R. Lazzari*
Affiliation:
Lehrstuhl für Biokybernetik, Universität Tübingen, Germany
*
Departamento de Biologia, Facultad de Cs. Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, (1428) Buenos Aires, Argentina.
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Abstract

The thermal preference of adults of the reduviid bug Triatoma infestans (Klug) was investigated along a temperature gradient by means of video recording. The preferred temperature varied with a daily rhythm, reaching the highest value at the onset and the lowest at the end of the dark phase. The daily range of preferred temperatures depended on the starvation level. After feeding it was about 28–29°C, and after 12 days of starvation 25–26°C. The number of eggs laid showed a bimodal pattern, with maxima at 29°C and 26°C. Along a gradient of relative humidity, the bugs were always found around 40% r.h.

Type
Research Paper
Information
Bulletin of Entomological Research , Volume 81 , Issue 3 , September 1991 , pp. 273 - 276
Copyright
Copyright © Cambridge University Press 1991

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