Abstract
We report here a gynandromorphic specimen of Papilio memnon from the Lao P.D.R. The right wings in this specimen principally indicate normal male color pattern, whereas the left wings show a mosaic pattern with the normal male and female (form distantianus) color patterns. The wing shape of this specimen is not similar to those of normal male and female (f. distantianus) specimens, and the size is relatively small in comparison with those of normal male and female specimens. This specimen has female (f. distantianus) external features in the right half abdomen, while male features in the left. Although the genital segments show the external features of those of a normal male, an egg is attached to it.
