This study experimentally investigated the thermoregulatory systems of social insects and considered a primitive guiding principle for the design of a new thermo-regulatory system utilizing bio-ecological information. The thermal conditions in the nests of honeybees (Apis mellifera) and bumblebees (Bombus ignitus) were visualized with a thermography, and the nest temperatures were measured with thermo-couples. Honeybees randomly walked on the combs with changing their body temperature. The nest temperature was kept at 34°C with diurnal temperature changes. A fluctuation pattern with 1/f mode was often seen at the range of low frequency regions of power-spectrum, and 1/f² mode was at the high frequency regions. On the other hand in the bumblebee nest, they stayed and incubated on the cocoon. The temperatures inside the cocoon were changed in a range of 27-29°C and the patterns showed 1/f² fluctuation mode at whole regions. Finally, a possibility of thermo-regulatory method imitating bio-ecological information is outlined.

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