Taiwan is near the northern limit of distribution of Musaceae. To understand the genetics and extent of genetic diversity in wild bananas in Taiwan, artificial hybrids between Musa itinerans var. formosana and M. balbisiana Colla, here named Musa × formobisiana H.-L. Chiu, C.-T. Shii & T.-Y.A. Yang hybrid nov., were produced. Photos and a comparison of the characteristics of Musa × formobisiana with the parent species are provided. Voucher specimens are at the Herbarium, National Museum of Natural Science, Taiwan (TNM).