Odonatologica《蜻蜓学》(季刊). Journal published for the International Odonatological Foundation, Societas Internationalis Odonatologica (S.I.O.). Odonatologica publishes original papers in all fields of odonatology. It is a semi-annual journal, published on 1st June and 1st December. It is general policy that submitted papers will be refereed. Publication language is English.