oa Journal of the Entomological Society of Southern Africa - Experiments on the regulation of the body temperature of certain tenebrionid beetles



On two visits to the Kalahari Gemsbok Reserve in 1956 and 1957, arranged by the National Parks Board, as well as on other journeys to arid areas, I noticed that some very black tenebrionid beetles were active even in the hottest part of the day when the sand was so hot that it was most uncomfortable for me to walk about barefooted. In a comparatively cool period in February 1957, the surface soil temperature was 57�C., while the air temperature at 12 cm. above the ground was 46�C. These observations drew my attention to the question of how these insects are able to tolerate such high temperatures.


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