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Keywords:

  • Nutrition;
  • dietary selection;
  • feeding behaviour;
  • locust;
  • caterpillar.

Abstract. A synthesis is presented for the control of nutrient intake in insects. The haemolymph plays a central role and provides a constantly updated summary of nutritional state. Various ways are discussed in which haemolymph parameters are directly and indirectly linked to the three key aspects of feeding behaviour: food location, food selection and ingestion.