Evaporative cooling and endothermy in the 13-year periodical cicada, Magicicada tredecem (Homoptera: Cicadidae)

  title={Evaporative cooling and endothermy in the 13-year periodical cicada, Magicicada tredecem (Homoptera: Cicadidae)},
  author={Eric C. Toolson and Elizabeth K. Toolson},
  journal={Journal of Comparative Physiology B},
SummaryThe thermobiology of a cicada, Magicicada tredecem, from a warm, high humidity environment was investigated. Thoracic temperature (Tth) of M. tredecem in the field was strongly dependent on, and consistently higher than, ambient temperature (Tam), averaging 33.0±0.19°C on warm sunny days (Tam=28–29°C, rh=60–75%). Laboratory studies documented cuticle water fluxes high enough (≈ 5mg · cm−2 · h−1 in dry air at 40°C) to result in a significant degree of passive evaporative cooling, but the… 

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