Abstract
The body temperatures of larvae of bollworms, Heliothis zea (Boddie), and adults of house flies, Musca domestica L.; boll weevils, Anthonomus grandis Boheman; American cockroaches, Periplaneta americana (L.) ; and brown soft scale, Coccus hesperidum L., were determined with microthermocouples and continuously recorded on a 24-point strip chart potentiometer. Peak body temperature for scales was 121°F, for cockroaches 124°F, for bollworm larvae 118°F, for house flies 112°F, and for boll weevils 106°F. Ambient air of the microenvironment and at 5 ft above ground was checked for comparison.

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