Abstract
Chalcosyrphus eunotus is one of the most endangered saproxylic hoverflies in Poland. Almost 80 years since its first record in Pomerania, this fly has been found in a few new localities in Poland: Ojcow National Park, Bialowieza Primeval Forest, and in the vicinity of following cities: Torun, Gdansk, Lodź and Inowlodz. The actual map of its range in Poland is presented and the current state of knowledge of its phenology, ecology, behavior and conservation status is discussed. The authors advance the hypothesis that the increasing occurrence of Ch. eunotus is directly proportional to an increase in the number of beavers over the last 20 years
Highlights
There are ca 400 species of Syrphidae recorded from Poland
The authors advance the hypothesis that the increasing occurrence o f Ch. eunotus is directly proportional to an increase in the number o f beavers over the last 20 years
Eighty-two species of hoverflies living in Poland are saprophagous, and most of them (65 species) are saproxylic - a group of insects extremely endangered due to larval habitat loss (Soszyński et al 2000, Soszyński 2007)
Summary
There are ca 400 species of Syrphidae recorded from Poland. These flies represent a wide spectrum of biological characteristics. Distribution and ecology of the saproxylic hoverfly Chalcosyrphus eunotus (Loew, 1873) (Diptera: Syrphidae) in Poland Abstract: Chalcosyrphus eunotus is one o f the m ost endangered saproxylic hoverflies in Poland. There are ca 400 species of Syrphidae recorded from Poland.
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