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Journal of Experimental Biology 54,415-435 (1971)
Published by Company of Biologists 1971

Dependence of Flight on Temperature Regulation in the Moth, Manduca Sexta

M. J. MCCREA ¹ and J. E. HEATH ¹

¹ Department of Physiology and Biophysics, University of Illinois, Urbana, Illinois 61801

1. Manduca sexta can behaviourally regulate its temperature, but the temperature level is not determined by a simple thermal set-point.

2. Thermoregulation is not localized in a cephalic nervous centre.

3. Both of these characteristics distinguish thermoregulation in M. sexta from thermoregulation as seen in vertebrates.

4. Sustained high temperature is a requisite for flight activity, but regulation of internal temperature is a secondary feature in M. sexta infserving efficient tuning of the flight system.

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