Haemolymph is a watery fluid containing ions, molecules and cells. It is often clear and
colourless but may be variously pigmented or rarely red due to haemoglobin in the immature
stages of few aquatic and endoparasitic flies (e.g., Chironomid larva). Haemolymph performs the
function of both blood and lymph. It is not involved in gas transporting function
Insect Morphology and Systematics
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(respiration).Haemolymph contains a fluid portion called
