Dragonflies and Damselflies of the Continents

From 1979 on I have got Odonata from many friends and sellers of insects. 1993 I have visited Japan. 1996 and 2001 I have visited Venezuela. 1999 I was in North U.S.A., in New York State and in Minnesota. 2003 I have visited the Philippines. 2015 I was in Argentina. In 2023 I have observed Odonata in Cyprus. Many deliveries with Odonata I got from museums and friends over the time. The Odonata I have identified with the help of many literatures during the long time. The new species for my collection I have integrated in this collection. Some new species or new parts of a species I could describe during this long time in different journals.