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Sphegina sibirica

 
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stuart
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Joined: 11 May 2005
Posts: 737
Location: Peterborough, UK

PostPosted: Sat May 28, 2005 5:39 pm    Post subject: Sphegina sibirica Reply with quote

Sphegina sibirica Stackelberg, 1953

Identification ease/difficulty: 3

Sources of information
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stuart
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Joined: 11 May 2005
Posts: 737
Location: Peterborough, UK

PostPosted: Sun May 29, 2005 8:41 am    Post subject: Species account from the Provisional atlas Reply with quote

Species account from Provisional atlas of British hoverflies, Ball & Morris, 2000.

Sphegina sibirica Stackelberg, 1953

Biology: Larvae unknown, but females have been observed ovipositing on the underside of a cut Picea trunk lying across a stream (Speight, 1998). In continental Europe, adults are found in Picea forests along the edges of paths and streams, where they often hover around freshly cut logs (Speight, 1988a). So far in Britain, records come from grassy areas and stream-sides in or near Picea plantations

Distribution: This species was added to the British list by Stubbs (1994) from Loch Duich in 1991, and has been found subsequently in a number of localities in south Wales, Shropshire and central Scotland. The occurrence of this species in Britain was predicted by Speight (1988a) and this work, and Stubbs (1996), should be consulted for separation from other British members of the genus. On the Continent, it appears to be spreading rapidly westwards from Scandinavia and European Russia, and can be expected to turn up more frequently in the future
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