BioStor
 | The Metasequoia flora and its phytogeographic significance S Y Hu (1980) Journal of the Arnold Arboretum 61: 41-94 |
 | Japanese sawflies of the family Blasticotomidae (Hymenoptera: Symphyta) I Togashi (1989) Proceedings of the Entomological Society of Washington 91: 406-413 |