Abstract

1. 1. Cueta trivirgata larvae construct pits in the dry Kuiseb River bed in the Namib Desert. 2. 2.An art, Ocymyrmex robustior comprises 65.4% of the biomass of prey consumed by the ant-lions. 3. 3. O. robustior is active between surface temperatures of 27–68°C. 4. 4.Ant-lions tolerate high body temperatures (LD 50 = 53.4°C). 5. 5.By exploiting the pit microclimate and by digging below the surface during extreme thermal loads, ant-lions can capture prey at surface temperatures of 13–63°C. 6. 6.These behavioural and physiological adaptations enable ant-lions to maximize the duration of vigilance and hence prey capture success.

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