THE NATURE AND ORIGIN OF THE MID‐GUT CONTENTS IN A SAP‐SUCKING HETEROPTERAN, PIEZOSTERNUM CALIDUM FAB.(TESSARATOMINAE), AND THE ROLE OF SYMBIOTIC BACTERIA IN ITS NUTRITION
Abstract:Evidence is presented in support of the hypothesis that in Piezosternum calidum the mid‐gut contents consist of symbiotic bacteria from the gastric caeca, and are not derived from the plant sap ingested. A similar process has been observed in other large sap‐sucking Heteroptera, of which Mygdonia tuberculosa (Coreidae) has been studied as an example, the site of bacterial digestion is usually posterior to an interruption in the continuity of the mid‐gut, but in P. calidum the gut is continuous and the contents… Show more
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