Abstract
In 1974, the authors had a series of field observation on Catopsilia at Kagoshima Prefecture, and reared the eggs laid by two females of Catopsilia Pomona Fabricius and three of C. crocale Cramer. The following results were obtained. 1) Of three examples of mating observed in the natural conditions at Yamakawa-cho (Kagoshima Pref. ), two were pomona x crocale. 2) Three batches of mixed offspring composed of pomona and crocale emerged from a female of ppmon aand two females of crocale. A batch of mixed offspring was supposed to occur also in the field. 3) All offspring of an individual of pomona were crocale. 4) Hatchability of the third generation deriving from the two females of crocale of which materal butterfly may be a single female of pomona is so high as shown by 100 and 93%. These results suggest that pomona and crocale, hitherto regarded as the dependent species, are the different phenotypes of a single species.
