The Type Specimens of the Odonata in the Entomological Institute, Hokkaido University Author Syoziro Asahina text Insecta matsumurana 1961 24 57 65 journal article http://doi.org/10.5281/zenodo.3516659 2ba41a83-aa08-498a-8d7c-3a5c3debfa99 3516659 40. Orthetrum triangulare melania Selys, 1883 = Pseudothermis nigrifrons Matsumura, 1898 Pseudothemis nigrifrons Matsumura, 1898 , p. 123 (Mt. Fuji) (syn. nov.). A single teneral male specimen of O. t. melania Selys was erroneously described as a new species by Matsumura.