They almost lack the flat part on the bottom surface. Thanks to Mr. T. Suzuki's studies, the number of its larval instars has been confirmed to be seven, and also its exceptionally lengthy growth period has been revealed. It also shows many peculiar habits. It has been inferred to be from some nectary near the posterior end of the larva's body. Thanks to Mr. Y. Torigoe's observation and photographing, it has been confirmed to be secreted from the anus.
Females fly to the same spot one after another to add their ova, to make batches of great numbers.
This kind of ova batch formation is unknown from any other butterfly. Although both genera are closely related, they are definitely not congeneric. Their larvae have a peculiar nest-building habit. The larva cuts a part of a foodplant leaf in the shape of an ellipse, and folds it to make a sandwich-like nest. When doing so, the larva skilfully retains the leaf veins undamaged in order not to wither the leaf piece cut and folded.