PATTERNS IN THE INTEGUMENT OF INSECTS
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FIG. 27. Grafts of the integument in Rhodnius. Grafts were performed on the fifth
instar and the results observed in the adult. When the relations in the axis are only
partly destroyed by rotating through 90°, the pattern of distortion in the adult depends upon the direction of rotation. Numerical values have been assigned to the
levels within a segment in the bottom diagram. The arrows show the direction in
which the pattern should be displaced, according to the difference in level between
host and graft given by the small figures. (After Locke, 1959a.)
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