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We propose that this can happen from the haemocoel, that is, the basolateral membrane, or the midgut lumen, that is, the apical membrane.

We propose that this can happen from the haemocoel, that is, the basolateral membrane, or the midgut lumen, that is, the apical membrane.

We propose that this can happen from the haemocoel, that is, the basolateral membrane, or the midgut lumen, that is, the apical membrane.

The dorsal vessel is prolonged anteriorly into an aorta, through which the blood is propelled into the great body-cavity or haemocoel.

It is therefore a haemocoel, the coelom of the developed insect being represented only by the cavities of the genital glands and their ducts.