Abdomen Size, Body Size and the Reproductive Effort of Insects

Abstract
Scaling of abdomen size to body size is examined in seven species of Papilionoidea and in one species of Diptera. In all these insects abdomen size shows a positive allometric increase with body size, despite the increased cost of flight suggested by the scaling of wing area and muscle mass to body size. The consistent abdominal scaling pattern found, suggests that an increased reproductive effort with size should be expected in many butterflies, and probably in other insects as well.

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