Abstract
The pupae of two callidulid genera, Callidula Hubner and Pterodecta Butler present in Japan are described. From the pupal characteristics, the Callidulidae as designated by Minet (1989) contains two (or more) conspicuously different families, one (including at least the Pterothysaninae) belongs to the Macrolepidoptera and is related to the Bombycoidea, the other (the Callidulinae) is a sister group of the Hyblaeidae in the Microlepidoptera. True Callidulidae should be restricted to Minet's Callidulinae.
