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The 14 known localities of Coenagrion armatum in Ukraine are listed and the 27 dragonfly species recorded are presented. An expedition devoted to revisit 10 of them in spring 2007 did not result in a confirmation at any of them. Here, all localities are described in detail and possible reasons for the absence of the species are discussed. These include habitat alterations because of anthropogenic impact, such as agricultural activity, as well as decreasing competitiveness against Mediterranean species that spread in response to altered climatic conditions. Proposed measures of conservation of C. armatum in Ukraine include a) the inclusion into the Red Data Book of Ukraine under category I (Endangered) and b) additional studies, monitoring and habitat conservation.
Twenty-eight Odonata species were recorded in the Poliskyi Nature Reserve (Zhytomyr oblast’, North Ukraine) in 2006 and 2007, 18 of which were reported for the first time from this location. This included such rare species as Somatochlora arctica (second record in the Ukraine, first record for 100 years), Leucorrhinia dubia, Leucorrhinia rubicunda and Leucorrhinia albifrons. A breeding site and a dense population of Nehalennia speciosa were found in a bog near the river. Zholobnytsya. The record of Orthetrum coerulescens is the northernmost in Ukraine.
